Home / 121,127,000.70-181,690,501.05-111,773,639.10

Finding the Fourth Proportional to 121,127,000.70, 181,690,501.05 and 111,773,639.10

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Solution

The fourth proportional to 121,127,000.70, 181,690,501.05 and 111,773,639.10 is: 167,660,458.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,127,000.70 : 181,690,501.05 = 111,773,639.10 : x
  2. Step 2: Convert to fraction form
    121,127,000.70/181,690,501.05 = 111,773,639.10/x
  3. Step 3: Cross multiply
    121,127,000.70x = 181,690,501.05 × 111,773,639.10
  4. Step 4: Simplify right side
    121,127,000.70x = 20,308,208,492,260,872
  5. Step 5: Solve for x
    x = 20,308,208,492,260,872/121,127,000.70
  6. Step 6: Final answer
    x = 167,660,458.65

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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.