Home / 205,013,707.49-307,534,197.54-72,050,482.32

Finding the Fourth Proportional to 205,013,707.49, 307,534,197.54 and 72,050,482.32

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Solution

The fourth proportional to 205,013,707.49, 307,534,197.54 and 72,050,482.32 is: 108,080,515.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,013,707.49 : 307,534,197.54 = 72,050,482.32 : x
  2. Step 2: Convert to fraction form
    205,013,707.49/307,534,197.54 = 72,050,482.32/x
  3. Step 3: Cross multiply
    205,013,707.49x = 307,534,197.54 × 72,050,482.32
  4. Step 4: Simplify right side
    205,013,707.49x = 22,157,987,262,651,156
  5. Step 5: Solve for x
    x = 22,157,987,262,651,156/205,013,707.49
  6. Step 6: Final answer
    x = 108,080,515.86

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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.