Home / 84,734,139.40-127,101,209.10-65,578,643.80

Finding the Fourth Proportional to 84,734,139.40, 127,101,209.10 and 65,578,643.80

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Solution

The fourth proportional to 84,734,139.40, 127,101,209.10 and 65,578,643.80 is: 98,367,965.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,734,139.40 : 127,101,209.10 = 65,578,643.80 : x
  2. Step 2: Convert to fraction form
    84,734,139.40/127,101,209.10 = 65,578,643.80/x
  3. Step 3: Cross multiply
    84,734,139.40x = 127,101,209.10 × 65,578,643.80
  4. Step 4: Simplify right side
    84,734,139.40x = 8,335,124,918,118,218
  5. Step 5: Solve for x
    x = 8,335,124,918,118,218/84,734,139.40
  6. Step 6: Final answer
    x = 98,367,965.70

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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.