Home / 1,018,631,072.16-1,527,944,702.40-319,176,755.16

Finding the Fourth Proportional to 1,018,631,072.16, 1,527,944,702.40 and 319,176,755.16

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Solution

The fourth proportional to 1,018,631,072.16, 1,527,944,702.40 and 319,176,755.16 is: 478,764,535.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,631,072.16 : 1,527,944,702.40 = 319,176,755.16 : x
  2. Step 2: Convert to fraction form
    1,018,631,072.16/1,527,944,702.40 = 319,176,755.16/x
  3. Step 3: Cross multiply
    1,018,631,072.16x = 1,527,944,702.40 × 319,176,755.16
  4. Step 4: Simplify right side
    1,018,631,072.16x = 487,684,432,175,943,936
  5. Step 5: Solve for x
    x = 487,684,432,175,943,936/1,018,631,072.16
  6. Step 6: Final answer
    x = 478,764,535.57

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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.