Home / 78,800,740.30-118,041,678.15-54,567,030.70

Finding the Fourth Proportional to 78,800,740.30, 118,041,678.15 and 54,567,030.70

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Solution

The fourth proportional to 78,800,740.30, 118,041,678.15 and 54,567,030.70 is: 81,740,144.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,800,740.30 : 118,041,678.15 = 54,567,030.70 : x
  2. Step 2: Convert to fraction form
    78,800,740.30/118,041,678.15 = 54,567,030.70/x
  3. Step 3: Cross multiply
    78,800,740.30x = 118,041,678.15 × 54,567,030.70
  4. Step 4: Simplify right side
    78,800,740.30x = 6,441,183,875,490,570
  5. Step 5: Solve for x
    x = 6,441,183,875,490,570/78,800,740.30
  6. Step 6: Final answer
    x = 81,740,144.20

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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.