Home / 257,445,997.60-386,187,658.80-154,989,421.60

Finding the Fourth Proportional to 257,445,997.60, 386,187,658.80 and 154,989,421.60

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Solution

The fourth proportional to 257,445,997.60, 386,187,658.80 and 154,989,421.60 is: 232,495,367.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,445,997.60 : 386,187,658.80 = 154,989,421.60 : x
  2. Step 2: Convert to fraction form
    257,445,997.60/386,187,658.80 = 154,989,421.60/x
  3. Step 3: Cross multiply
    257,445,997.60x = 386,187,658.80 × 154,989,421.60
  4. Step 4: Simplify right side
    257,445,997.60x = 59,855,001,866,470,152
  5. Step 5: Solve for x
    x = 59,855,001,866,470,152/257,445,997.60
  6. Step 6: Final answer
    x = 232,495,367.67

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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.