Home / 28,773,916.32-39,707,541.12-15,720,895.20

Finding the Fourth Proportional to 28,773,916.32, 39,707,541.12 and 15,720,895.20

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Solution

The fourth proportional to 28,773,916.32, 39,707,541.12 and 15,720,895.20 is: 21,694,582.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,773,916.32 : 39,707,541.12 = 15,720,895.20 : x
  2. Step 2: Convert to fraction form
    28,773,916.32/39,707,541.12 = 15,720,895.20/x
  3. Step 3: Cross multiply
    28,773,916.32x = 39,707,541.12 × 15,720,895.20
  4. Step 4: Simplify right side
    28,773,916.32x = 624,238,092,597,210.50
  5. Step 5: Solve for x
    x = 624,238,092,597,210.50/28,773,916.32
  6. Step 6: Final answer
    x = 21,694,582.19

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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.