Home / 1,243,234,031.50-1,715,668,443.21-686,321,654.86

Finding the Fourth Proportional to 1,243,234,031.50, 1,715,668,443.21 and 686,321,654.86

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Solution

The fourth proportional to 1,243,234,031.50, 1,715,668,443.21 and 686,321,654.86 is: 947,126,908.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,234,031.50 : 1,715,668,443.21 = 686,321,654.86 : x
  2. Step 2: Convert to fraction form
    1,243,234,031.50/1,715,668,443.21 = 686,321,654.86/x
  3. Step 3: Cross multiply
    1,243,234,031.50x = 1,715,668,443.21 × 686,321,654.86
  4. Step 4: Simplify right side
    1,243,234,031.50x = 1,177,500,405,134,967,296
  5. Step 5: Solve for x
    x = 1,177,500,405,134,967,296/1,243,234,031.50
  6. Step 6: Final answer
    x = 947,126,908.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.