Home / 1,359,908,672.40-2,039,863,008.60-439,878,013.20

Finding the Fourth Proportional to 1,359,908,672.40, 2,039,863,008.60 and 439,878,013.20

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Solution

The fourth proportional to 1,359,908,672.40, 2,039,863,008.60 and 439,878,013.20 is: 659,817,019.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,359,908,672.40 : 2,039,863,008.60 = 439,878,013.20 : x
  2. Step 2: Convert to fraction form
    1,359,908,672.40/2,039,863,008.60 = 439,878,013.20/x
  3. Step 3: Cross multiply
    1,359,908,672.40x = 2,039,863,008.60 × 439,878,013.20
  4. Step 4: Simplify right side
    1,359,908,672.40x = 897,290,887,423,142,400
  5. Step 5: Solve for x
    x = 897,290,887,423,142,400/1,359,908,672.40
  6. Step 6: Final answer
    x = 659,817,019.80

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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.