Home / 700,543,909.40-1,050,815,864.10-442,901,312.60

Finding the Fourth Proportional to 700,543,909.40, 1,050,815,864.10 and 442,901,312.60

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Solution

The fourth proportional to 700,543,909.40, 1,050,815,864.10 and 442,901,312.60 is: 664,351,968.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,543,909.40 : 1,050,815,864.10 = 442,901,312.60 : x
  2. Step 2: Convert to fraction form
    700,543,909.40/1,050,815,864.10 = 442,901,312.60/x
  3. Step 3: Cross multiply
    700,543,909.40x = 1,050,815,864.10 × 442,901,312.60
  4. Step 4: Simplify right side
    700,543,909.40x = 465,407,725,510,793,280
  5. Step 5: Solve for x
    x = 465,407,725,510,793,280/700,543,909.40
  6. Step 6: Final answer
    x = 664,351,968.90

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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.