Home / 878,047,073.34-1,211,359,324.23-506,697,350.46

Finding the Fourth Proportional to 878,047,073.34, 1,211,359,324.23 and 506,697,350.46

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Solution

The fourth proportional to 878,047,073.34, 1,211,359,324.23 and 506,697,350.46 is: 699,042,885.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,047,073.34 : 1,211,359,324.23 = 506,697,350.46 : x
  2. Step 2: Convert to fraction form
    878,047,073.34/1,211,359,324.23 = 506,697,350.46/x
  3. Step 3: Cross multiply
    878,047,073.34x = 1,211,359,324.23 × 506,697,350.46
  4. Step 4: Simplify right side
    878,047,073.34x = 613,792,560,042,357,120
  5. Step 5: Solve for x
    x = 613,792,560,042,357,120/878,047,073.34
  6. Step 6: Final answer
    x = 699,042,885.83

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1.5x scale

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.