Home / 9,321,208,657.20-13,981,812,985.80-8,385,998,468.40

Finding the Fourth Proportional to 9,321,208,657.20, 13,981,812,985.80 and 8,385,998,468.40

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Solution

The fourth proportional to 9,321,208,657.20, 13,981,812,985.80 and 8,385,998,468.40 is: 12,578,997,702.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,321,208,657.20 : 13,981,812,985.80 = 8,385,998,468.40 : x
  2. Step 2: Convert to fraction form
    9,321,208,657.20/13,981,812,985.80 = 8,385,998,468.40/x
  3. Step 3: Cross multiply
    9,321,208,657.20x = 13,981,812,985.80 × 8,385,998,468.40
  4. Step 4: Simplify right side
    9,321,208,657.20x = 117,251,462,284,374,016,000
  5. Step 5: Solve for x
    x = 117,251,462,284,374,016,000/9,321,208,657.20
  6. Step 6: Final answer
    x = 12,578,997,702.60

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1.5x scale

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.