Home / 118,872,000.80-178,308,001.20-99,740,124.80

Finding the Fourth Proportional to 118,872,000.80, 178,308,001.20 and 99,740,124.80

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Solution

The fourth proportional to 118,872,000.80, 178,308,001.20 and 99,740,124.80 is: 149,610,187.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,872,000.80 : 178,308,001.20 = 99,740,124.80 : x
  2. Step 2: Convert to fraction form
    118,872,000.80/178,308,001.20 = 99,740,124.80/x
  3. Step 3: Cross multiply
    118,872,000.80x = 178,308,001.20 × 99,740,124.80
  4. Step 4: Simplify right side
    118,872,000.80x = 17,784,462,292,526,548
  5. Step 5: Solve for x
    x = 17,784,462,292,526,548/118,872,000.80
  6. Step 6: Final answer
    x = 149,610,187.20

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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.