Home / 78,732,341.20-118,098,511.80-54,464,514.40

Finding the Fourth Proportional to 78,732,341.20, 118,098,511.80 and 54,464,514.40

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Solution

The fourth proportional to 78,732,341.20, 118,098,511.80 and 54,464,514.40 is: 81,696,771.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,732,341.20 : 118,098,511.80 = 54,464,514.40 : x
  2. Step 2: Convert to fraction form
    78,732,341.20/118,098,511.80 = 54,464,514.40/x
  3. Step 3: Cross multiply
    78,732,341.20x = 118,098,511.80 × 54,464,514.40
  4. Step 4: Simplify right side
    78,732,341.20x = 6,432,178,096,549,670
  5. Step 5: Solve for x
    x = 6,432,178,096,549,670/78,732,341.20
  6. Step 6: Final answer
    x = 81,696,771.60

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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.