Home / 839,814,000.10-1,259,721,000.15-778,591,996.90

Finding the Fourth Proportional to 839,814,000.10, 1,259,721,000.15 and 778,591,996.90

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Solution

The fourth proportional to 839,814,000.10, 1,259,721,000.15 and 778,591,996.90 is: 1,167,887,995.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,814,000.10 : 1,259,721,000.15 = 778,591,996.90 : x
  2. Step 2: Convert to fraction form
    839,814,000.10/1,259,721,000.15 = 778,591,996.90/x
  3. Step 3: Cross multiply
    839,814,000.10x = 1,259,721,000.15 × 778,591,996.90
  4. Step 4: Simplify right side
    839,814,000.10x = 980,808,689,043,653,760
  5. Step 5: Solve for x
    x = 980,808,689,043,653,760/839,814,000.10
  6. Step 6: Final answer
    x = 1,167,887,995.35

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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.