Home / 256,021,315.45-383,988,694.87-71,746,412.11

Finding the Fourth Proportional to 256,021,315.45, 383,988,694.87 and 71,746,412.11

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Solution

The fourth proportional to 256,021,315.45, 383,988,694.87 and 71,746,412.11 is: 107,607,490.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,021,315.45 : 383,988,694.87 = 71,746,412.11 : x
  2. Step 2: Convert to fraction form
    256,021,315.45/383,988,694.87 = 71,746,412.11/x
  3. Step 3: Cross multiply
    256,021,315.45x = 383,988,694.87 × 71,746,412.11
  4. Step 4: Simplify right side
    256,021,315.45x = 27,549,811,147,724,064
  5. Step 5: Solve for x
    x = 27,549,811,147,724,064/256,021,315.45
  6. Step 6: Final answer
    x = 107,607,490.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.