Home / 1,327,104,000.60-1,990,656,000.90-839,791,411.80

Finding the Fourth Proportional to 1,327,104,000.60, 1,990,656,000.90 and 839,791,411.80

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Solution

The fourth proportional to 1,327,104,000.60, 1,990,656,000.90 and 839,791,411.80 is: 1,259,687,117.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327,104,000.60 : 1,990,656,000.90 = 839,791,411.80 : x
  2. Step 2: Convert to fraction form
    1,327,104,000.60/1,990,656,000.90 = 839,791,411.80/x
  3. Step 3: Cross multiply
    1,327,104,000.60x = 1,990,656,000.90 × 839,791,411.80
  4. Step 4: Simplify right side
    1,327,104,000.60x = 1,671,735,813,403,953,152
  5. Step 5: Solve for x
    x = 1,671,735,813,403,953,152/1,327,104,000.60
  6. Step 6: Final answer
    x = 1,259,687,117.70

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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.