Home / 243,372,663.08-335,870,753.06-137,489,354.74

Finding the Fourth Proportional to 243,372,663.08, 335,870,753.06 and 137,489,354.74

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Solution

The fourth proportional to 243,372,663.08, 335,870,753.06 and 137,489,354.74 is: 189,744,618.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,372,663.08 : 335,870,753.06 = 137,489,354.74 : x
  2. Step 2: Convert to fraction form
    243,372,663.08/335,870,753.06 = 137,489,354.74/x
  3. Step 3: Cross multiply
    243,372,663.08x = 335,870,753.06 × 137,489,354.74
  4. Step 4: Simplify right side
    243,372,663.08x = 46,178,653,114,249,528
  5. Step 5: Solve for x
    x = 46,178,653,114,249,528/243,372,663.08
  6. Step 6: Final answer
    x = 189,744,618.52

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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.