Home / 887,123,813.20-1,330,685,719.80-657,541,301.20

Finding the Fourth Proportional to 887,123,813.20, 1,330,685,719.80 and 657,541,301.20

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Solution

The fourth proportional to 887,123,813.20, 1,330,685,719.80 and 657,541,301.20 is: 986,311,951.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,123,813.20 : 1,330,685,719.80 = 657,541,301.20 : x
  2. Step 2: Convert to fraction form
    887,123,813.20/1,330,685,719.80 = 657,541,301.20/x
  3. Step 3: Cross multiply
    887,123,813.20x = 1,330,685,719.80 × 657,541,301.20
  4. Step 4: Simplify right side
    887,123,813.20x = 874,980,819,685,550,592
  5. Step 5: Solve for x
    x = 874,980,819,685,550,592/887,123,813.20
  6. Step 6: Final answer
    x = 986,311,951.80

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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.