Home / 72,070,139.39-99,456,261.93-39,029,622.03

Finding the Fourth Proportional to 72,070,139.39, 99,456,261.93 and 39,029,622.03

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Solution

The fourth proportional to 72,070,139.39, 99,456,261.93 and 39,029,622.03 is: 53,860,591.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,070,139.39 : 99,456,261.93 = 39,029,622.03 : x
  2. Step 2: Convert to fraction form
    72,070,139.39/99,456,261.93 = 39,029,622.03/x
  3. Step 3: Cross multiply
    72,070,139.39x = 99,456,261.93 × 39,029,622.03
  4. Step 4: Simplify right side
    72,070,139.39x = 3,881,740,311,644,578.50
  5. Step 5: Solve for x
    x = 3,881,740,311,644,578.50/72,070,139.39
  6. Step 6: Final answer
    x = 53,860,591.15

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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.