Home / 748,866,543.40-1,123,299,815.10-340,719,855.40

Finding the Fourth Proportional to 748,866,543.40, 1,123,299,815.10 and 340,719,855.40

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Solution

The fourth proportional to 748,866,543.40, 1,123,299,815.10 and 340,719,855.40 is: 511,079,783.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,866,543.40 : 1,123,299,815.10 = 340,719,855.40 : x
  2. Step 2: Convert to fraction form
    748,866,543.40/1,123,299,815.10 = 340,719,855.40/x
  3. Step 3: Cross multiply
    748,866,543.40x = 1,123,299,815.10 × 340,719,855.40
  4. Step 4: Simplify right side
    748,866,543.40x = 382,730,550,571,718,656
  5. Step 5: Solve for x
    x = 382,730,550,571,718,656/748,866,543.40
  6. Step 6: Final answer
    x = 511,079,783.10

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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.