Home / 121,116,810.30-181,458,702.45-73,707,024.30

Finding the Fourth Proportional to 121,116,810.30, 181,458,702.45 and 73,707,024.30

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Solution

The fourth proportional to 121,116,810.30, 181,458,702.45 and 73,707,024.30 is: 110,428,774.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,116,810.30 : 181,458,702.45 = 73,707,024.30 : x
  2. Step 2: Convert to fraction form
    121,116,810.30/181,458,702.45 = 73,707,024.30/x
  3. Step 3: Cross multiply
    121,116,810.30x = 181,458,702.45 × 73,707,024.30
  4. Step 4: Simplify right side
    121,116,810.30x = 13,374,780,990,928,618
  5. Step 5: Solve for x
    x = 13,374,780,990,928,618/121,116,810.30
  6. Step 6: Final answer
    x = 110,428,774.98

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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.