Home / 20,701,697,312.70-31,031,382,807.45-10,204,769,159.10

Finding the Fourth Proportional to 20,701,697,312.70, 31,031,382,807.45 and 10,204,769,159.10

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Solution

The fourth proportional to 20,701,697,312.70, 31,031,382,807.45 and 10,204,769,159.10 is: 15,296,721,493.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,701,697,312.70 : 31,031,382,807.45 = 10,204,769,159.10 : x
  2. Step 2: Convert to fraction form
    20,701,697,312.70/31,031,382,807.45 = 10,204,769,159.10/x
  3. Step 3: Cross multiply
    20,701,697,312.70x = 31,031,382,807.45 × 10,204,769,159.10
  4. Step 4: Simplify right side
    20,701,697,312.70x = 316,668,098,237,691,723,776
  5. Step 5: Solve for x
    x = 316,668,098,237,691,723,776/20,701,697,312.70
  6. Step 6: Final answer
    x = 15,296,721,493.62

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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.