Home / 387,786,250.80-578,264,084.84-384,288,704.72

Finding the Fourth Proportional to 387,786,250.80, 578,264,084.84 and 384,288,704.72

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Solution

The fourth proportional to 387,786,250.80, 578,264,084.84 and 384,288,704.72 is: 573,048,569.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,786,250.80 : 578,264,084.84 = 384,288,704.72 : x
  2. Step 2: Convert to fraction form
    387,786,250.80/578,264,084.84 = 384,288,704.72/x
  3. Step 3: Cross multiply
    387,786,250.80x = 578,264,084.84 × 384,288,704.72
  4. Step 4: Simplify right side
    387,786,250.80x = 222,220,356,149,259,808
  5. Step 5: Solve for x
    x = 222,220,356,149,259,808/387,786,250.80
  6. Step 6: Final answer
    x = 573,048,569.13

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.