Home / 210,165,835.53-290,046,780.41-117,364,271.61

Finding the Fourth Proportional to 210,165,835.53, 290,046,780.41 and 117,364,271.61

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Solution

The fourth proportional to 210,165,835.53, 290,046,780.41 and 117,364,271.61 is: 161,972,706.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,165,835.53 : 290,046,780.41 = 117,364,271.61 : x
  2. Step 2: Convert to fraction form
    210,165,835.53/290,046,780.41 = 117,364,271.61/x
  3. Step 3: Cross multiply
    210,165,835.53x = 290,046,780.41 × 117,364,271.61
  4. Step 4: Simplify right side
    210,165,835.53x = 34,041,129,115,058,444
  5. Step 5: Solve for x
    x = 34,041,129,115,058,444/210,165,835.53
  6. Step 6: Final answer
    x = 161,972,706.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.