Home / 470,282,244.49-648,387,041.29-385,195,910.28

Finding the Fourth Proportional to 470,282,244.49, 648,387,041.29 and 385,195,910.28

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Solution

The fourth proportional to 470,282,244.49, 648,387,041.29 and 385,195,910.28 is: 531,076,900.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,282,244.49 : 648,387,041.29 = 385,195,910.28 : x
  2. Step 2: Convert to fraction form
    470,282,244.49/648,387,041.29 = 385,195,910.28/x
  3. Step 3: Cross multiply
    470,282,244.49x = 648,387,041.29 × 385,195,910.28
  4. Step 4: Simplify right side
    470,282,244.49x = 249,756,036,578,289,568
  5. Step 5: Solve for x
    x = 249,756,036,578,289,568/470,282,244.49
  6. Step 6: Final answer
    x = 531,076,900.11

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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.