Home / 220,626,507.76-304,460,866.20-121,516,484.56

Finding the Fourth Proportional to 220,626,507.76, 304,460,866.20 and 121,516,484.56

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Solution

The fourth proportional to 220,626,507.76, 304,460,866.20 and 121,516,484.56 is: 167,690,702.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,626,507.76 : 304,460,866.20 = 121,516,484.56 : x
  2. Step 2: Convert to fraction form
    220,626,507.76/304,460,866.20 = 121,516,484.56/x
  3. Step 3: Cross multiply
    220,626,507.76x = 304,460,866.20 × 121,516,484.56
  4. Step 4: Simplify right side
    220,626,507.76x = 36,997,014,146,716,528
  5. Step 5: Solve for x
    x = 36,997,014,146,716,528/220,626,507.76
  6. Step 6: Final answer
    x = 167,690,702.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.