Home / 421,433,145.31-632,134,562.74-110,538,278.12

Finding the Fourth Proportional to 421,433,145.31, 632,134,562.74 and 110,538,278.12

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Solution

The fourth proportional to 421,433,145.31, 632,134,562.74 and 110,538,278.12 is: 165,803,442.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,433,145.31 : 632,134,562.74 = 110,538,278.12 : x
  2. Step 2: Convert to fraction form
    421,433,145.31/632,134,562.74 = 110,538,278.12/x
  3. Step 3: Cross multiply
    421,433,145.31x = 632,134,562.74 × 110,538,278.12
  4. Step 4: Simplify right side
    421,433,145.31x = 69,875,066,105,418,712
  5. Step 5: Solve for x
    x = 69,875,066,105,418,712/421,433,145.31
  6. Step 6: Final answer
    x = 165,803,442.10

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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.