Home / 105,144,946.52-157,061,739.80-77,904,443.38

Finding the Fourth Proportional to 105,144,946.52, 157,061,739.80 and 77,904,443.38

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Solution

The fourth proportional to 105,144,946.52, 157,061,739.80 and 77,904,443.38 is: 116,370,855.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,144,946.52 : 157,061,739.80 = 77,904,443.38 : x
  2. Step 2: Convert to fraction form
    105,144,946.52/157,061,739.80 = 77,904,443.38/x
  3. Step 3: Cross multiply
    105,144,946.52x = 157,061,739.80 × 77,904,443.38
  4. Step 4: Simplify right side
    105,144,946.52x = 12,235,807,415,413,392
  5. Step 5: Solve for x
    x = 12,235,807,415,413,392/105,144,946.52
  6. Step 6: Final answer
    x = 116,370,855.86

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.