Home / 282,928,631.08-390,441,529.65-157,478,134.76

Finding the Fourth Proportional to 282,928,631.08, 390,441,529.65 and 157,478,134.76

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Solution

The fourth proportional to 282,928,631.08, 390,441,529.65 and 157,478,134.76 is: 217,319,836.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,928,631.08 : 390,441,529.65 = 157,478,134.76 : x
  2. Step 2: Convert to fraction form
    282,928,631.08/390,441,529.65 = 157,478,134.76/x
  3. Step 3: Cross multiply
    282,928,631.08x = 390,441,529.65 × 157,478,134.76
  4. Step 4: Simplify right side
    282,928,631.08x = 61,486,003,823,691,456
  5. Step 5: Solve for x
    x = 61,486,003,823,691,456/282,928,631.08
  6. Step 6: Final answer
    x = 217,319,836.42

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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.