Home / 748,869,897.40-1,123,304,846.10-340,723,209.40

Finding the Fourth Proportional to 748,869,897.40, 1,123,304,846.10 and 340,723,209.40

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Solution

The fourth proportional to 748,869,897.40, 1,123,304,846.10 and 340,723,209.40 is: 511,084,814.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,869,897.40 : 1,123,304,846.10 = 340,723,209.40 : x
  2. Step 2: Convert to fraction form
    748,869,897.40/1,123,304,846.10 = 340,723,209.40/x
  3. Step 3: Cross multiply
    748,869,897.40x = 1,123,304,846.10 × 340,723,209.40
  4. Step 4: Simplify right side
    748,869,897.40x = 382,736,032,297,764,992
  5. Step 5: Solve for x
    x = 382,736,032,297,764,992/748,869,897.40
  6. Step 6: Final answer
    x = 511,084,814.10

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Double scale
Find fourth proportional to 748,869,898.40, 1,123,304,847.60 and 340,723,210.40
Similar ratio
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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.