Home / 78,063,904.80-117,011,876.40-29,523,002.40

Finding the Fourth Proportional to 78,063,904.80, 117,011,876.40 and 29,523,002.40

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Solution

The fourth proportional to 78,063,904.80, 117,011,876.40 and 29,523,002.40 is: 44,252,742.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,063,904.80 : 117,011,876.40 = 29,523,002.40 : x
  2. Step 2: Convert to fraction form
    78,063,904.80/117,011,876.40 = 29,523,002.40/x
  3. Step 3: Cross multiply
    78,063,904.80x = 117,011,876.40 × 29,523,002.40
  4. Step 4: Simplify right side
    78,063,904.80x = 3,454,541,907,785,703.50
  5. Step 5: Solve for x
    x = 3,454,541,907,785,703.50/78,063,904.80
  6. Step 6: Final answer
    x = 44,252,742.89

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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.