Home / 128,547,399.97-192,795,319.83-62,940,270.40

Finding the Fourth Proportional to 128,547,399.97, 192,795,319.83 and 62,940,270.40

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Solution

The fourth proportional to 128,547,399.97, 192,795,319.83 and 62,940,270.40 is: 94,397,782.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,547,399.97 : 192,795,319.83 = 62,940,270.40 : x
  2. Step 2: Convert to fraction form
    128,547,399.97/192,795,319.83 = 62,940,270.40/x
  3. Step 3: Cross multiply
    128,547,399.97x = 192,795,319.83 × 62,940,270.40
  4. Step 4: Simplify right side
    128,547,399.97x = 12,134,589,563,064,072
  5. Step 5: Solve for x
    x = 12,134,589,563,064,072/128,547,399.97
  6. Step 6: Final answer
    x = 94,397,782.97

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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.