Home / 752,408,506.89-1,038,326,145.03-417,880,968.71

Finding the Fourth Proportional to 752,408,506.89, 1,038,326,145.03 and 417,880,968.71

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Solution

The fourth proportional to 752,408,506.89, 1,038,326,145.03 and 417,880,968.71 is: 576,677,072.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,408,506.89 : 1,038,326,145.03 = 417,880,968.71 : x
  2. Step 2: Convert to fraction form
    752,408,506.89/1,038,326,145.03 = 417,880,968.71/x
  3. Step 3: Cross multiply
    752,408,506.89x = 1,038,326,145.03 × 417,880,968.71
  4. Step 4: Simplify right side
    752,408,506.89x = 433,896,735,316,864,704
  5. Step 5: Solve for x
    x = 433,896,735,316,864,704/752,408,506.89
  6. Step 6: Final answer
    x = 576,677,072.82

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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.