Home / 1,031,739,141.28-1,423,762,612.22-630,524,123.12

Finding the Fourth Proportional to 1,031,739,141.28, 1,423,762,612.22 and 630,524,123.12

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Solution

The fourth proportional to 1,031,739,141.28, 1,423,762,612.22 and 630,524,123.12 is: 870,100,432.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,031,739,141.28 : 1,423,762,612.22 = 630,524,123.12 : x
  2. Step 2: Convert to fraction form
    1,031,739,141.28/1,423,762,612.22 = 630,524,123.12/x
  3. Step 3: Cross multiply
    1,031,739,141.28x = 1,423,762,612.22 × 630,524,123.12
  4. Step 4: Simplify right side
    1,031,739,141.28x = 897,716,672,601,056,128
  5. Step 5: Solve for x
    x = 897,716,672,601,056,128/1,031,739,141.28
  6. Step 6: Final answer
    x = 870,100,432.06

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Double scale
Find fourth proportional to 1,031,739,142.28, 1,423,762,613.60 and 630,524,124.12
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1.5x scale

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.