Home / 1,041,012,005.80-1,561,518,008.70-458,446,381.60

Finding the Fourth Proportional to 1,041,012,005.80, 1,561,518,008.70 and 458,446,381.60

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Solution

The fourth proportional to 1,041,012,005.80, 1,561,518,008.70 and 458,446,381.60 is: 687,669,572.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,041,012,005.80 : 1,561,518,008.70 = 458,446,381.60 : x
  2. Step 2: Convert to fraction form
    1,041,012,005.80/1,561,518,008.70 = 458,446,381.60/x
  3. Step 3: Cross multiply
    1,041,012,005.80x = 1,561,518,008.70 × 458,446,381.60
  4. Step 4: Simplify right side
    1,041,012,005.80x = 715,872,280,891,752,320
  5. Step 5: Solve for x
    x = 715,872,280,891,752,320/1,041,012,005.80
  6. Step 6: Final answer
    x = 687,669,572.40

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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.