Home / 12,528,068.10-18,792,102.15-11,781,572.10

Finding the Fourth Proportional to 12,528,068.10, 18,792,102.15 and 11,781,572.10

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Solution

The fourth proportional to 12,528,068.10, 18,792,102.15 and 11,781,572.10 is: 17,672,358.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528,068.10 : 18,792,102.15 = 11,781,572.10 : x
  2. Step 2: Convert to fraction form
    12,528,068.10/18,792,102.15 = 11,781,572.10/x
  3. Step 3: Cross multiply
    12,528,068.10x = 18,792,102.15 × 11,781,572.10
  4. Step 4: Simplify right side
    12,528,068.10x = 221,400,506,390,790
  5. Step 5: Solve for x
    x = 221,400,506,390,790/12,528,068.10
  6. Step 6: Final answer
    x = 17,672,358.15

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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.