Home / 813,947,391.30-1,220,921,086.95-504,011,000.10

Finding the Fourth Proportional to 813,947,391.30, 1,220,921,086.95 and 504,011,000.10

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Solution

The fourth proportional to 813,947,391.30, 1,220,921,086.95 and 504,011,000.10 is: 756,016,500.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,947,391.30 : 1,220,921,086.95 = 504,011,000.10 : x
  2. Step 2: Convert to fraction form
    813,947,391.30/1,220,921,086.95 = 504,011,000.10/x
  3. Step 3: Cross multiply
    813,947,391.30x = 1,220,921,086.95 × 504,011,000.10
  4. Step 4: Simplify right side
    813,947,391.30x = 615,357,658,076,848,640
  5. Step 5: Solve for x
    x = 615,357,658,076,848,640/813,947,391.30
  6. Step 6: Final answer
    x = 756,016,500.15

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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.