Home / 147,622,764.30-221,434,146.45-86,148,818.70

Finding the Fourth Proportional to 147,622,764.30, 221,434,146.45 and 86,148,818.70

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Solution

The fourth proportional to 147,622,764.30, 221,434,146.45 and 86,148,818.70 is: 129,223,228.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,622,764.30 : 221,434,146.45 = 86,148,818.70 : x
  2. Step 2: Convert to fraction form
    147,622,764.30/221,434,146.45 = 86,148,818.70/x
  3. Step 3: Cross multiply
    147,622,764.30x = 221,434,146.45 × 86,148,818.70
  4. Step 4: Simplify right side
    147,622,764.30x = 19,076,290,136,510,300
  5. Step 5: Solve for x
    x = 19,076,290,136,510,300/147,622,764.30
  6. Step 6: Final answer
    x = 129,223,228.05

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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.