Home / 1,306,935,631.79-1,803,518,693.44-712,207,440.44

Finding the Fourth Proportional to 1,306,935,631.79, 1,803,518,693.44 and 712,207,440.44

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Solution

The fourth proportional to 1,306,935,631.79, 1,803,518,693.44 and 712,207,440.44 is: 982,817,669.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,306,935,631.79 : 1,803,518,693.44 = 712,207,440.44 : x
  2. Step 2: Convert to fraction form
    1,306,935,631.79/1,803,518,693.44 = 712,207,440.44/x
  3. Step 3: Cross multiply
    1,306,935,631.79x = 1,803,518,693.44 × 712,207,440.44
  4. Step 4: Simplify right side
    1,306,935,631.79x = 1,284,479,432,440,595,456
  5. Step 5: Solve for x
    x = 1,284,479,432,440,595,456/1,306,935,631.79
  6. Step 6: Final answer
    x = 982,817,669.97

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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.