Home / 66,802,128.71-100,219,883.21-47,144,637.39

Finding the Fourth Proportional to 66,802,128.71, 100,219,883.21 and 47,144,637.39

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Solution

The fourth proportional to 66,802,128.71, 100,219,883.21 and 47,144,637.39 is: 70,728,734.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,802,128.71 : 100,219,883.21 = 47,144,637.39 : x
  2. Step 2: Convert to fraction form
    66,802,128.71/100,219,883.21 = 47,144,637.39/x
  3. Step 3: Cross multiply
    66,802,128.71x = 100,219,883.21 × 47,144,637.39
  4. Step 4: Simplify right side
    66,802,128.71x = 4,724,830,053,520,492
  5. Step 5: Solve for x
    x = 4,724,830,053,520,492/66,802,128.71
  6. Step 6: Final answer
    x = 70,728,734.92

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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.