Home / 640,041,287.60-960,061,931.40-478,798,151.60

Finding the Fourth Proportional to 640,041,287.60, 960,061,931.40 and 478,798,151.60

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Solution

The fourth proportional to 640,041,287.60, 960,061,931.40 and 478,798,151.60 is: 718,197,227.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,041,287.60 : 960,061,931.40 = 478,798,151.60 : x
  2. Step 2: Convert to fraction form
    640,041,287.60/960,061,931.40 = 478,798,151.60/x
  3. Step 3: Cross multiply
    640,041,287.60x = 960,061,931.40 × 478,798,151.60
  4. Step 4: Simplify right side
    640,041,287.60x = 459,675,878,175,846,016
  5. Step 5: Solve for x
    x = 459,675,878,175,846,016/640,041,287.60
  6. Step 6: Final answer
    x = 718,197,227.40

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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.