Home / 120,992,727.40-181,489,091.10-99,735,087.40

Finding the Fourth Proportional to 120,992,727.40, 181,489,091.10 and 99,735,087.40

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Solution

The fourth proportional to 120,992,727.40, 181,489,091.10 and 99,735,087.40 is: 149,602,631.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,992,727.40 : 181,489,091.10 = 99,735,087.40 : x
  2. Step 2: Convert to fraction form
    120,992,727.40/181,489,091.10 = 99,735,087.40/x
  3. Step 3: Cross multiply
    120,992,727.40x = 181,489,091.10 × 99,735,087.40
  4. Step 4: Simplify right side
    120,992,727.40x = 18,100,830,363,005,064
  5. Step 5: Solve for x
    x = 18,100,830,363,005,064/120,992,727.40
  6. Step 6: Final answer
    x = 149,602,631.10

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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.