Home / 121,323,281.10-181,984,921.65-80,508,612.30

Finding the Fourth Proportional to 121,323,281.10, 181,984,921.65 and 80,508,612.30

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Solution

The fourth proportional to 121,323,281.10, 181,984,921.65 and 80,508,612.30 is: 120,762,918.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,323,281.10 : 181,984,921.65 = 80,508,612.30 : x
  2. Step 2: Convert to fraction form
    121,323,281.10/181,984,921.65 = 80,508,612.30/x
  3. Step 3: Cross multiply
    121,323,281.10x = 181,984,921.65 × 80,508,612.30
  4. Step 4: Simplify right side
    121,323,281.10x = 14,651,353,501,565,726
  5. Step 5: Solve for x
    x = 14,651,353,501,565,726/121,323,281.10
  6. Step 6: Final answer
    x = 120,762,918.45

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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.