Home / 99,668,296.80-149,502,445.20-61,205,090.40

Finding the Fourth Proportional to 99,668,296.80, 149,502,445.20 and 61,205,090.40

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Solution

The fourth proportional to 99,668,296.80, 149,502,445.20 and 61,205,090.40 is: 91,807,635.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,668,296.80 : 149,502,445.20 = 61,205,090.40 : x
  2. Step 2: Convert to fraction form
    99,668,296.80/149,502,445.20 = 61,205,090.40/x
  3. Step 3: Cross multiply
    99,668,296.80x = 149,502,445.20 × 61,205,090.40
  4. Step 4: Simplify right side
    99,668,296.80x = 9,150,310,673,487,046
  5. Step 5: Solve for x
    x = 9,150,310,673,487,046/99,668,296.80
  6. Step 6: Final answer
    x = 91,807,635.60

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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.