Home / 691,096,123.20-1,036,644,184.80-671,964,247.20

Finding the Fourth Proportional to 691,096,123.20, 1,036,644,184.80 and 671,964,247.20

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Solution

The fourth proportional to 691,096,123.20, 1,036,644,184.80 and 671,964,247.20 is: 1,007,946,370.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,096,123.20 : 1,036,644,184.80 = 671,964,247.20 : x
  2. Step 2: Convert to fraction form
    691,096,123.20/1,036,644,184.80 = 671,964,247.20/x
  3. Step 3: Cross multiply
    691,096,123.20x = 1,036,644,184.80 × 671,964,247.20
  4. Step 4: Simplify right side
    691,096,123.20x = 696,587,829,253,389,696
  5. Step 5: Solve for x
    x = 696,587,829,253,389,696/691,096,123.20
  6. Step 6: Final answer
    x = 1,007,946,370.80

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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.