Home / 470,282,243.30-648,387,039.65-385,195,909.09

Finding the Fourth Proportional to 470,282,243.30, 648,387,039.65 and 385,195,909.09

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Solution

The fourth proportional to 470,282,243.30, 648,387,039.65 and 385,195,909.09 is: 531,076,898.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,282,243.30 : 648,387,039.65 = 385,195,909.09 : x
  2. Step 2: Convert to fraction form
    470,282,243.30/648,387,039.65 = 385,195,909.09/x
  3. Step 3: Cross multiply
    470,282,243.30x = 648,387,039.65 × 385,195,909.09
  4. Step 4: Simplify right side
    470,282,243.30x = 249,756,035,177,827,648
  5. Step 5: Solve for x
    x = 249,756,035,177,827,648/470,282,243.30
  6. Step 6: Final answer
    x = 531,076,898.47

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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.