Home / 470,282,246.27-648,387,043.74-385,195,912.06

Finding the Fourth Proportional to 470,282,246.27, 648,387,043.74 and 385,195,912.06

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Solution

The fourth proportional to 470,282,246.27, 648,387,043.74 and 385,195,912.06 is: 531,076,902.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,282,246.27 : 648,387,043.74 = 385,195,912.06 : x
  2. Step 2: Convert to fraction form
    470,282,246.27/648,387,043.74 = 385,195,912.06/x
  3. Step 3: Cross multiply
    470,282,246.27x = 648,387,043.74 × 385,195,912.06
  4. Step 4: Simplify right side
    470,282,246.27x = 249,756,038,681,316,416
  5. Step 5: Solve for x
    x = 249,756,038,681,316,416/470,282,246.27
  6. Step 6: Final answer
    x = 531,076,902.57

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