Home / 742,154,260.25-1,024,521,573.18-428,827,865.96

Finding the Fourth Proportional to 742,154,260.25, 1,024,521,573.18 and 428,827,865.96

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Solution

The fourth proportional to 742,154,260.25, 1,024,521,573.18 and 428,827,865.96 is: 591,983,935.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,154,260.25 : 1,024,521,573.18 = 428,827,865.96 : x
  2. Step 2: Convert to fraction form
    742,154,260.25/1,024,521,573.18 = 428,827,865.96/x
  3. Step 3: Cross multiply
    742,154,260.25x = 1,024,521,573.18 × 428,827,865.96
  4. Step 4: Simplify right side
    742,154,260.25x = 439,343,399,856,761,344
  5. Step 5: Solve for x
    x = 439,343,399,856,761,344/742,154,260.25
  6. Step 6: Final answer
    x = 591,983,935.67

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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.