Home / 1,442,231,638.67-2,163,344,094.21-947,365,861.43

Finding the Fourth Proportional to 1,442,231,638.67, 2,163,344,094.21 and 947,365,861.43

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Solution

The fourth proportional to 1,442,231,638.67, 2,163,344,094.21 and 947,365,861.43 is: 1,421,046,582.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,442,231,638.67 : 2,163,344,094.21 = 947,365,861.43 : x
  2. Step 2: Convert to fraction form
    1,442,231,638.67/2,163,344,094.21 = 947,365,861.43/x
  3. Step 3: Cross multiply
    1,442,231,638.67x = 2,163,344,094.21 × 947,365,861.43
  4. Step 4: Simplify right side
    1,442,231,638.67x = 2,049,478,341,369,943,040
  5. Step 5: Solve for x
    x = 2,049,478,341,369,943,040/1,442,231,638.67
  6. Step 6: Final answer
    x = 1,421,046,582.55

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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.