Home / 12,956,346,454.15-17,879,824,223.72-7,240,726,275.19

Finding the Fourth Proportional to 12,956,346,454.15, 17,879,824,223.72 and 7,240,726,275.19

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Solution

The fourth proportional to 12,956,346,454.15, 17,879,824,223.72 and 7,240,726,275.19 is: 9,992,239,209.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,956,346,454.15 : 17,879,824,223.72 = 7,240,726,275.19 : x
  2. Step 2: Convert to fraction form
    12,956,346,454.15/17,879,824,223.72 = 7,240,726,275.19/x
  3. Step 3: Cross multiply
    12,956,346,454.15x = 17,879,824,223.72 × 7,240,726,275.19
  4. Step 4: Simplify right side
    12,956,346,454.15x = 129,462,913,052,468,051,968
  5. Step 5: Solve for x
    x = 129,462,913,052,468,051,968/12,956,346,454.15
  6. Step 6: Final answer
    x = 9,992,239,209.61

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Double scale
Find fourth proportional to 12,956,346,455.15, 17,879,824,225.10 and 7,240,726,276.19
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.