Home / 38,996,950.47-53,871,848.31-31,146,155.20

Finding the Fourth Proportional to 38,996,950.47, 53,871,848.31 and 31,146,155.20

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Solution

The fourth proportional to 38,996,950.47, 53,871,848.31 and 31,146,155.20 is: 43,026,465.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,996,950.47 : 53,871,848.31 = 31,146,155.20 : x
  2. Step 2: Convert to fraction form
    38,996,950.47/53,871,848.31 = 31,146,155.20/x
  3. Step 3: Cross multiply
    38,996,950.47x = 53,871,848.31 × 31,146,155.20
  4. Step 4: Simplify right side
    38,996,950.47x = 1,677,900,948,374,117.75
  5. Step 5: Solve for x
    x = 1,677,900,948,374,117.75/38,996,950.47
  6. Step 6: Final answer
    x = 43,026,465.61

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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.