Home / 1,241,746,920.80-1,862,620,381.20-423,885,903.20

Finding the Fourth Proportional to 1,241,746,920.80, 1,862,620,381.20 and 423,885,903.20

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Solution

The fourth proportional to 1,241,746,920.80, 1,862,620,381.20 and 423,885,903.20 is: 635,828,854.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,241,746,920.80 : 1,862,620,381.20 = 423,885,903.20 : x
  2. Step 2: Convert to fraction form
    1,241,746,920.80/1,862,620,381.20 = 423,885,903.20/x
  3. Step 3: Cross multiply
    1,241,746,920.80x = 1,862,620,381.20 × 423,885,903.20
  4. Step 4: Simplify right side
    1,241,746,920.80x = 789,538,522,603,690,240
  5. Step 5: Solve for x
    x = 789,538,522,603,690,240/1,241,746,920.80
  6. Step 6: Final answer
    x = 635,828,854.80

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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.