Home / 466,230,981.72-643,381,901.46-257,382,648.84

Finding the Fourth Proportional to 466,230,981.72, 643,381,901.46 and 257,382,648.84

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Solution

The fourth proportional to 466,230,981.72, 643,381,901.46 and 257,382,648.84 is: 355,178,751.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,230,981.72 : 643,381,901.46 = 257,382,648.84 : x
  2. Step 2: Convert to fraction form
    466,230,981.72/643,381,901.46 = 257,382,648.84/x
  3. Step 3: Cross multiply
    466,230,981.72x = 643,381,901.46 × 257,382,648.84
  4. Step 4: Simplify right side
    466,230,981.72x = 165,595,338,013,490,688
  5. Step 5: Solve for x
    x = 165,595,338,013,490,688/466,230,981.72
  6. Step 6: Final answer
    x = 355,178,751.53

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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.