Home / 99,643,206.80-149,464,810.20-61,180,000.40

Finding the Fourth Proportional to 99,643,206.80, 149,464,810.20 and 61,180,000.40

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Solution

The fourth proportional to 99,643,206.80, 149,464,810.20 and 61,180,000.40 is: 91,770,000.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,643,206.80 : 149,464,810.20 = 61,180,000.40 : x
  2. Step 2: Convert to fraction form
    99,643,206.80/149,464,810.20 = 61,180,000.40/x
  3. Step 3: Cross multiply
    99,643,206.80x = 149,464,810.20 × 61,180,000.40
  4. Step 4: Simplify right side
    99,643,206.80x = 9,144,257,147,821,924
  5. Step 5: Solve for x
    x = 9,144,257,147,821,924/99,643,206.80
  6. Step 6: Final answer
    x = 91,770,000.60

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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.