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Finding the Fourth Proportional to 400,788,045.60, 601,182,068.40 and 239,544,909.60

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Solution

The fourth proportional to 400,788,045.60, 601,182,068.40 and 239,544,909.60 is: 359,317,364.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,788,045.60 : 601,182,068.40 = 239,544,909.60 : x
  2. Step 2: Convert to fraction form
    400,788,045.60/601,182,068.40 = 239,544,909.60/x
  3. Step 3: Cross multiply
    400,788,045.60x = 601,182,068.40 × 239,544,909.60
  4. Step 4: Simplify right side
    400,788,045.60x = 144,010,104,228,019,008
  5. Step 5: Solve for x
    x = 144,010,104,228,019,008/400,788,045.60
  6. Step 6: Final answer
    x = 359,317,364.40

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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.