Home / 191,720,663,999.10-287,580,995,998.65-80,005,813,659.90

Finding the Fourth Proportional to 191,720,663,999.10, 287,580,995,998.65 and 80,005,813,659.90

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Solution

The fourth proportional to 191,720,663,999.10, 287,580,995,998.65 and 80,005,813,659.90 is: 120,008,720,489.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,720,663,999.10 : 287,580,995,998.65 = 80,005,813,659.90 : x
  2. Step 2: Convert to fraction form
    191,720,663,999.10/287,580,995,998.65 = 80,005,813,659.90/x
  3. Step 3: Cross multiply
    191,720,663,999.10x = 287,580,995,998.65 × 80,005,813,659.90
  4. Step 4: Simplify right side
    191,720,663,999.10x = 23,008,151,577,996,438,798,336
  5. Step 5: Solve for x
    x = 23,008,151,577,996,438,798,336/191,720,663,999.10
  6. Step 6: Final answer
    x = 120,008,720,489.85

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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.