Home / 1,091,502,001.80-1,637,253,002.70-315,226,133.10

Finding the Fourth Proportional to 1,091,502,001.80, 1,637,253,002.70 and 315,226,133.10

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Solution

The fourth proportional to 1,091,502,001.80, 1,637,253,002.70 and 315,226,133.10 is: 472,839,199.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,502,001.80 : 1,637,253,002.70 = 315,226,133.10 : x
  2. Step 2: Convert to fraction form
    1,091,502,001.80/1,637,253,002.70 = 315,226,133.10/x
  3. Step 3: Cross multiply
    1,091,502,001.80x = 1,637,253,002.70 × 315,226,133.10
  4. Step 4: Simplify right side
    1,091,502,001.80x = 516,104,932,947,484,928
  5. Step 5: Solve for x
    x = 516,104,932,947,484,928/1,091,502,001.80
  6. Step 6: Final answer
    x = 472,839,199.65

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Double scale
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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.