Home / 259,938,279.80-390,056,718.90-98,496,078.20

Finding the Fourth Proportional to 259,938,279.80, 390,056,718.90 and 98,496,078.20

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Solution

The fourth proportional to 259,938,279.80, 390,056,718.90 and 98,496,078.20 is: 147,800,689.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,938,279.80 : 390,056,718.90 = 98,496,078.20 : x
  2. Step 2: Convert to fraction form
    259,938,279.80/390,056,718.90 = 98,496,078.20/x
  3. Step 3: Cross multiply
    259,938,279.80x = 390,056,718.90 × 98,496,078.20
  4. Step 4: Simplify right side
    259,938,279.80x = 38,419,057,087,209,816
  5. Step 5: Solve for x
    x = 38,419,057,087,209,816/259,938,279.80
  6. Step 6: Final answer
    x = 147,800,689.91

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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.