Home / 121,140,290.20-181,710,435.30-72,767,349.40

Finding the Fourth Proportional to 121,140,290.20, 181,710,435.30 and 72,767,349.40

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Solution

The fourth proportional to 121,140,290.20, 181,710,435.30 and 72,767,349.40 is: 109,151,024.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,140,290.20 : 181,710,435.30 = 72,767,349.40 : x
  2. Step 2: Convert to fraction form
    121,140,290.20/181,710,435.30 = 72,767,349.40/x
  3. Step 3: Cross multiply
    121,140,290.20x = 181,710,435.30 × 72,767,349.40
  4. Step 4: Simplify right side
    121,140,290.20x = 13,222,586,735,101,196
  5. Step 5: Solve for x
    x = 13,222,586,735,101,196/121,140,290.20
  6. Step 6: Final answer
    x = 109,151,024.10

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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.