Home / 418,364,811.60-627,547,217.40-392,855,643.60

Finding the Fourth Proportional to 418,364,811.60, 627,547,217.40 and 392,855,643.60

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Solution

The fourth proportional to 418,364,811.60, 627,547,217.40 and 392,855,643.60 is: 589,283,465.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,364,811.60 : 627,547,217.40 = 392,855,643.60 : x
  2. Step 2: Convert to fraction form
    418,364,811.60/627,547,217.40 = 392,855,643.60/x
  3. Step 3: Cross multiply
    418,364,811.60x = 627,547,217.40 × 392,855,643.60
  4. Step 4: Simplify right side
    418,364,811.60x = 246,535,465,981,066,112
  5. Step 5: Solve for x
    x = 246,535,465,981,066,112/418,364,811.60
  6. Step 6: Final answer
    x = 589,283,465.40

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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.