Home / 787,927,007.20-1,181,890,510.80-724,437,522.40

Finding the Fourth Proportional to 787,927,007.20, 1,181,890,510.80 and 724,437,522.40

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Solution

The fourth proportional to 787,927,007.20, 1,181,890,510.80 and 724,437,522.40 is: 1,086,656,283.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,927,007.20 : 1,181,890,510.80 = 724,437,522.40 : x
  2. Step 2: Convert to fraction form
    787,927,007.20/1,181,890,510.80 = 724,437,522.40/x
  3. Step 3: Cross multiply
    787,927,007.20x = 1,181,890,510.80 × 724,437,522.40
  4. Step 4: Simplify right side
    787,927,007.20x = 856,205,833,392,022,400
  5. Step 5: Solve for x
    x = 856,205,833,392,022,400/787,927,007.20
  6. Step 6: Final answer
    x = 1,086,656,283.60

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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.