Home / 71,142,345.55-98,168,878.62-39,347,462.71

Finding the Fourth Proportional to 71,142,345.55, 98,168,878.62 and 39,347,462.71

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Solution

The fourth proportional to 71,142,345.55, 98,168,878.62 and 39,347,462.71 is: 54,295,318.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,142,345.55 : 98,168,878.62 = 39,347,462.71 : x
  2. Step 2: Convert to fraction form
    71,142,345.55/98,168,878.62 = 39,347,462.71/x
  3. Step 3: Cross multiply
    71,142,345.55x = 98,168,878.62 × 39,347,462.71
  4. Step 4: Simplify right side
    71,142,345.55x = 3,862,696,290,905,677.50
  5. Step 5: Solve for x
    x = 3,862,696,290,905,677.50/71,142,345.55
  6. Step 6: Final answer
    x = 54,295,318.22

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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.