Home / 881,670,300.17-1,216,431,056.30-500,129,500.05

Finding the Fourth Proportional to 881,670,300.17, 1,216,431,056.30 and 500,129,500.05

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Solution

The fourth proportional to 881,670,300.17, 1,216,431,056.30 and 500,129,500.05 is: 690,023,306.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,670,300.17 : 1,216,431,056.30 = 500,129,500.05 : x
  2. Step 2: Convert to fraction form
    881,670,300.17/1,216,431,056.30 = 500,129,500.05/x
  3. Step 3: Cross multiply
    881,670,300.17x = 1,216,431,056.30 × 500,129,500.05
  4. Step 4: Simplify right side
    881,670,300.17x = 608,373,056,030,111,744
  5. Step 5: Solve for x
    x = 608,373,056,030,111,744/881,670,300.17
  6. Step 6: Final answer
    x = 690,023,306.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.