Home / 12,138,376.12-18,210,275.70-4,565,407.48

Finding the Fourth Proportional to 12,138,376.12, 18,210,275.70 and 4,565,407.48

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Solution

The fourth proportional to 12,138,376.12, 18,210,275.70 and 4,565,407.48 is: 6,849,131.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,138,376.12 : 18,210,275.70 = 4,565,407.48 : x
  2. Step 2: Convert to fraction form
    12,138,376.12/18,210,275.70 = 4,565,407.48/x
  3. Step 3: Cross multiply
    12,138,376.12x = 18,210,275.70 × 4,565,407.48
  4. Step 4: Simplify right side
    12,138,376.12x = 83,137,328,893,642.23
  5. Step 5: Solve for x
    x = 83,137,328,893,642.23/12,138,376.12
  6. Step 6: Final answer
    x = 6,849,131.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.