Home / 12,956,346,454.28-17,879,824,223.89-7,240,726,275.32

Finding the Fourth Proportional to 12,956,346,454.28, 17,879,824,223.89 and 7,240,726,275.32

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Solution

The fourth proportional to 12,956,346,454.28, 17,879,824,223.89 and 7,240,726,275.32 is: 9,992,239,209.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,956,346,454.28 : 17,879,824,223.89 = 7,240,726,275.32 : x
  2. Step 2: Convert to fraction form
    12,956,346,454.28/17,879,824,223.89 = 7,240,726,275.32/x
  3. Step 3: Cross multiply
    12,956,346,454.28x = 17,879,824,223.89 × 7,240,726,275.32
  4. Step 4: Simplify right side
    12,956,346,454.28x = 129,462,913,055,933,939,712
  5. Step 5: Solve for x
    x = 129,462,913,055,933,939,712/12,956,346,454.28
  6. Step 6: Final answer
    x = 9,992,239,209.78

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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.