Home / 642,871,605.49-964,204,105.21-176,424,068.32

Finding the Fourth Proportional to 642,871,605.49, 964,204,105.21 and 176,424,068.32

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Solution

The fourth proportional to 642,871,605.49, 964,204,105.21 and 176,424,068.32 is: 264,607,752.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,871,605.49 : 964,204,105.21 = 176,424,068.32 : x
  2. Step 2: Convert to fraction form
    642,871,605.49/964,204,105.21 = 176,424,068.32/x
  3. Step 3: Cross multiply
    642,871,605.49x = 964,204,105.21 × 176,424,068.32
  4. Step 4: Simplify right side
    642,871,605.49x = 170,108,810,931,993,504
  5. Step 5: Solve for x
    x = 170,108,810,931,993,504/642,871,605.49
  6. Step 6: Final answer
    x = 264,607,752.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.