Home / 81,788,982.29-112,866,979.08-45,119,543.57

Finding the Fourth Proportional to 81,788,982.29, 112,866,979.08 and 45,119,543.57

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Solution

The fourth proportional to 81,788,982.29, 112,866,979.08 and 45,119,543.57 is: 62,263,968.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,788,982.29 : 112,866,979.08 = 45,119,543.57 : x
  2. Step 2: Convert to fraction form
    81,788,982.29/112,866,979.08 = 45,119,543.57/x
  3. Step 3: Cross multiply
    81,788,982.29x = 112,866,979.08 × 45,119,543.57
  4. Step 4: Simplify right side
    81,788,982.29x = 5,092,506,579,424,406
  5. Step 5: Solve for x
    x = 5,092,506,579,424,406/81,788,982.29
  6. Step 6: Final answer
    x = 62,263,968.04

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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.