Home / 6,438,528,089.80-9,657,792,134.70-4,479,423,987.40

Finding the Fourth Proportional to 6,438,528,089.80, 9,657,792,134.70 and 4,479,423,987.40

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Solution

The fourth proportional to 6,438,528,089.80, 9,657,792,134.70 and 4,479,423,987.40 is: 6,719,135,981.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,438,528,089.80 : 9,657,792,134.70 = 4,479,423,987.40 : x
  2. Step 2: Convert to fraction form
    6,438,528,089.80/9,657,792,134.70 = 4,479,423,987.40/x
  3. Step 3: Cross multiply
    6,438,528,089.80x = 9,657,792,134.70 × 4,479,423,987.40
  4. Step 4: Simplify right side
    6,438,528,089.80x = 43,261,345,753,498,230,784
  5. Step 5: Solve for x
    x = 43,261,345,753,498,230,784/6,438,528,089.80
  6. Step 6: Final answer
    x = 6,719,135,981.10

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Double scale
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Similar ratio
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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.