Home / 144,835,988.63-199,874,703.74-78,756,013.26

Finding the Fourth Proportional to 144,835,988.63, 199,874,703.74 and 78,756,013.26

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Solution

The fourth proportional to 144,835,988.63, 199,874,703.74 and 78,756,013.26 is: 108,683,863.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,835,988.63 : 199,874,703.74 = 78,756,013.26 : x
  2. Step 2: Convert to fraction form
    144,835,988.63/199,874,703.74 = 78,756,013.26/x
  3. Step 3: Cross multiply
    144,835,988.63x = 199,874,703.74 × 78,756,013.26
  4. Step 4: Simplify right side
    144,835,988.63x = 15,741,334,817,692,234
  5. Step 5: Solve for x
    x = 15,741,334,817,692,234/144,835,988.63
  6. Step 6: Final answer
    x = 108,683,863.50

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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.