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Finding the Fourth Proportional to 640,685,044.60, 960,510,395.44 and 588,970,655.87

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Solution

The fourth proportional to 640,685,044.60, 960,510,395.44 and 588,970,655.87 is: 882,980,557.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,685,044.60 : 960,510,395.44 = 588,970,655.87 : x
  2. Step 2: Convert to fraction form
    640,685,044.60/960,510,395.44 = 588,970,655.87/x
  3. Step 3: Cross multiply
    640,685,044.60x = 960,510,395.44 × 588,970,655.87
  4. Step 4: Simplify right side
    640,685,044.60x = 565,712,437,569,025,728
  5. Step 5: Solve for x
    x = 565,712,437,569,025,728/640,685,044.60
  6. Step 6: Final answer
    x = 882,980,557.05

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1.5x scale

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.