Home / 142,185,386.61-212,933,301.80-98,343,100.62

Finding the Fourth Proportional to 142,185,386.61, 212,933,301.80 and 98,343,100.62

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Solution

The fourth proportional to 142,185,386.61, 212,933,301.80 and 98,343,100.62 is: 147,276,183.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,185,386.61 : 212,933,301.80 = 98,343,100.62 : x
  2. Step 2: Convert to fraction form
    142,185,386.61/212,933,301.80 = 98,343,100.62/x
  3. Step 3: Cross multiply
    142,185,386.61x = 212,933,301.80 × 98,343,100.62
  4. Step 4: Simplify right side
    142,185,386.61x = 20,940,521,123,774,512
  5. Step 5: Solve for x
    x = 20,940,521,123,774,512/142,185,386.61
  6. Step 6: Final answer
    x = 147,276,183.74

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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.