Home / 105,146,971.53-157,755,497.13-66,240,506.70

Finding the Fourth Proportional to 105,146,971.53, 157,755,497.13 and 66,240,506.70

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Solution

The fourth proportional to 105,146,971.53, 157,755,497.13 and 66,240,506.70 is: 99,382,834.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,146,971.53 : 157,755,497.13 = 66,240,506.70 : x
  2. Step 2: Convert to fraction form
    105,146,971.53/157,755,497.13 = 66,240,506.70/x
  3. Step 3: Cross multiply
    105,146,971.53x = 157,755,497.13 × 66,240,506.70
  4. Step 4: Simplify right side
    105,146,971.53x = 10,449,804,064,601,596
  5. Step 5: Solve for x
    x = 10,449,804,064,601,596/105,146,971.53
  6. Step 6: Final answer
    x = 99,382,834.45

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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.