Home / 282,931,581.79-390,445,600.88-157,481,077.11

Finding the Fourth Proportional to 282,931,581.79, 390,445,600.88 and 157,481,077.11

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Solution

The fourth proportional to 282,931,581.79, 390,445,600.88 and 157,481,077.11 is: 217,323,896.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,931,581.79 : 390,445,600.88 = 157,481,077.11 : x
  2. Step 2: Convert to fraction form
    282,931,581.79/390,445,600.88 = 157,481,077.11/x
  3. Step 3: Cross multiply
    282,931,581.79x = 390,445,600.88 × 157,481,077.11
  4. Step 4: Simplify right side
    282,931,581.79x = 61,487,793,777,782,544
  5. Step 5: Solve for x
    x = 61,487,793,777,782,544/282,931,581.79
  6. Step 6: Final answer
    x = 217,323,896.43

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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.