Home / 748,869,886.90-1,123,304,830.35-340,723,198.90

Finding the Fourth Proportional to 748,869,886.90, 1,123,304,830.35 and 340,723,198.90

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Solution

The fourth proportional to 748,869,886.90, 1,123,304,830.35 and 340,723,198.90 is: 511,084,798.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,869,886.90 : 1,123,304,830.35 = 340,723,198.90 : x
  2. Step 2: Convert to fraction form
    748,869,886.90/1,123,304,830.35 = 340,723,198.90/x
  3. Step 3: Cross multiply
    748,869,886.90x = 1,123,304,830.35 × 340,723,198.90
  4. Step 4: Simplify right side
    748,869,886.90x = 382,736,015,136,673,728
  5. Step 5: Solve for x
    x = 382,736,015,136,673,728/748,869,886.90
  6. Step 6: Final answer
    x = 511,084,798.35

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Double scale
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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.