Home / 54,128,909.60-81,051,646.80-39,673,714.40

Finding the Fourth Proportional to 54,128,909.60, 81,051,646.80 and 39,673,714.40

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Solution

The fourth proportional to 54,128,909.60, 81,051,646.80 and 39,673,714.40 is: 59,406,699.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,128,909.60 : 81,051,646.80 = 39,673,714.40 : x
  2. Step 2: Convert to fraction form
    54,128,909.60/81,051,646.80 = 39,673,714.40/x
  3. Step 3: Cross multiply
    54,128,909.60x = 81,051,646.80 × 39,673,714.40
  4. Step 4: Simplify right side
    54,128,909.60x = 3,215,619,886,792,873.50
  5. Step 5: Solve for x
    x = 3,215,619,886,792,873.50/54,128,909.60
  6. Step 6: Final answer
    x = 59,406,699.87

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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.