Home / 1,012,989,368.91-1,397,969,019.35-560,867,333.76

Finding the Fourth Proportional to 1,012,989,368.91, 1,397,969,019.35 and 560,867,333.76

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Solution

The fourth proportional to 1,012,989,368.91, 1,397,969,019.35 and 560,867,333.76 is: 774,021,110.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,012,989,368.91 : 1,397,969,019.35 = 560,867,333.76 : x
  2. Step 2: Convert to fraction form
    1,012,989,368.91/1,397,969,019.35 = 560,867,333.76/x
  3. Step 3: Cross multiply
    1,012,989,368.91x = 1,397,969,019.35 × 560,867,333.76
  4. Step 4: Simplify right side
    1,012,989,368.91x = 784,075,156,561,916,288
  5. Step 5: Solve for x
    x = 784,075,156,561,916,288/1,012,989,368.91
  6. Step 6: Final answer
    x = 774,021,110.81

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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.