Home / 315,249,726,980.31-472,935,429,842.62-102,956,786,972.79

Finding the Fourth Proportional to 315,249,726,980.31, 472,935,429,842.62 and 102,956,786,972.79

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Solution

The fourth proportional to 315,249,726,980.31, 472,935,429,842.62 and 102,956,786,972.79 is: 154,455,049,869.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,249,726,980.31 : 472,935,429,842.62 = 102,956,786,972.79 : x
  2. Step 2: Convert to fraction form
    315,249,726,980.31/472,935,429,842.62 = 102,956,786,972.79/x
  3. Step 3: Cross multiply
    315,249,726,980.31x = 472,935,429,842.62 × 102,956,786,972.79
  4. Step 4: Simplify right side
    315,249,726,980.31x = 48,691,912,302,191,490,105,344
  5. Step 5: Solve for x
    x = 48,691,912,302,191,490,105,344/315,249,726,980.31
  6. Step 6: Final answer
    x = 154,455,049,869.82

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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.