Home / 81,686,880.95-122,556,223.80-29,163,425.58

Finding the Fourth Proportional to 81,686,880.95, 122,556,223.80 and 29,163,425.58

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Solution

The fourth proportional to 81,686,880.95, 122,556,223.80 and 29,163,425.58 is: 43,754,385.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,686,880.95 : 122,556,223.80 = 29,163,425.58 : x
  2. Step 2: Convert to fraction form
    81,686,880.95/122,556,223.80 = 29,163,425.58/x
  3. Step 3: Cross multiply
    81,686,880.95x = 122,556,223.80 × 29,163,425.58
  4. Step 4: Simplify right side
    81,686,880.95x = 3,574,159,312,157,124.50
  5. Step 5: Solve for x
    x = 3,574,159,312,157,124.50/81,686,880.95
  6. Step 6: Final answer
    x = 43,754,385.90

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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.