Home / 390,088,234.60-585,132,351.90-160,222,287.40

Finding the Fourth Proportional to 390,088,234.60, 585,132,351.90 and 160,222,287.40

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Solution

The fourth proportional to 390,088,234.60, 585,132,351.90 and 160,222,287.40 is: 240,333,431.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,088,234.60 : 585,132,351.90 = 160,222,287.40 : x
  2. Step 2: Convert to fraction form
    390,088,234.60/585,132,351.90 = 160,222,287.40/x
  3. Step 3: Cross multiply
    390,088,234.60x = 585,132,351.90 × 160,222,287.40
  4. Step 4: Simplify right side
    390,088,234.60x = 93,751,243,853,159,728
  5. Step 5: Solve for x
    x = 93,751,243,853,159,728/390,088,234.60
  6. Step 6: Final answer
    x = 240,333,431.10

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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.