Home / 390,971,515.20-586,669,849.20-160,963,850.40

Finding the Fourth Proportional to 390,971,515.20, 586,669,849.20 and 160,963,850.40

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Solution

The fourth proportional to 390,971,515.20, 586,669,849.20 and 160,963,850.40 is: 241,533,293.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,971,515.20 : 586,669,849.20 = 160,963,850.40 : x
  2. Step 2: Convert to fraction form
    390,971,515.20/586,669,849.20 = 160,963,850.40/x
  3. Step 3: Cross multiply
    390,971,515.20x = 586,669,849.20 × 160,963,850.40
  4. Step 4: Simplify right side
    390,971,515.20x = 94,432,637,840,819,376
  5. Step 5: Solve for x
    x = 94,432,637,840,819,376/390,971,515.20
  6. Step 6: Final answer
    x = 241,533,293.78

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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.