Home / 470,282,247.27-648,387,045.12-385,195,913.06

Finding the Fourth Proportional to 470,282,247.27, 648,387,045.12 and 385,195,913.06

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Solution

The fourth proportional to 470,282,247.27, 648,387,045.12 and 385,195,913.06 is: 531,076,903.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,282,247.27 : 648,387,045.12 = 385,195,913.06 : x
  2. Step 2: Convert to fraction form
    470,282,247.27/648,387,045.12 = 385,195,913.06/x
  3. Step 3: Cross multiply
    470,282,247.27x = 648,387,045.12 × 385,195,913.06
  4. Step 4: Simplify right side
    470,282,247.27x = 249,756,039,861,273,824
  5. Step 5: Solve for x
    x = 249,756,039,861,273,824/470,282,247.27
  6. Step 6: Final answer
    x = 531,076,903.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.