Home / 386,091,315.74-532,802,230.50-209,868,826.28

Finding the Fourth Proportional to 386,091,315.74, 532,802,230.50 and 209,868,826.28

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Solution

The fourth proportional to 386,091,315.74, 532,802,230.50 and 209,868,826.28 is: 289,616,922.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,091,315.74 : 532,802,230.50 = 209,868,826.28 : x
  2. Step 2: Convert to fraction form
    386,091,315.74/532,802,230.50 = 209,868,826.28/x
  3. Step 3: Cross multiply
    386,091,315.74x = 532,802,230.50 × 209,868,826.28
  4. Step 4: Simplify right side
    386,091,315.74x = 111,818,578,754,401,024
  5. Step 5: Solve for x
    x = 111,818,578,754,401,024/386,091,315.74
  6. Step 6: Final answer
    x = 289,616,922.72

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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.