Home / 390,388,825.64-585,680,158.98-193,744,528.59

Finding the Fourth Proportional to 390,388,825.64, 585,680,158.98 and 193,744,528.59

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Solution

The fourth proportional to 390,388,825.64, 585,680,158.98 and 193,744,528.59 is: 290,664,893.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,388,825.64 : 585,680,158.98 = 193,744,528.59 : x
  2. Step 2: Convert to fraction form
    390,388,825.64/585,680,158.98 = 193,744,528.59/x
  3. Step 3: Cross multiply
    390,388,825.64x = 585,680,158.98 × 193,744,528.59
  4. Step 4: Simplify right side
    390,388,825.64x = 113,472,326,308,028,368
  5. Step 5: Solve for x
    x = 113,472,326,308,028,368/390,388,825.64
  6. Step 6: Final answer
    x = 290,664,893.19

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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.