Home / 72,007,556.49-99,370,730.90-38,967,807.24

Finding the Fourth Proportional to 72,007,556.49, 99,370,730.90 and 38,967,807.24

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Solution

The fourth proportional to 72,007,556.49, 99,370,730.90 and 38,967,807.24 is: 53,775,737.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,007,556.49 : 99,370,730.90 = 38,967,807.24 : x
  2. Step 2: Convert to fraction form
    72,007,556.49/99,370,730.90 = 38,967,807.24/x
  3. Step 3: Cross multiply
    72,007,556.49x = 99,370,730.90 × 38,967,807.24
  4. Step 4: Simplify right side
    72,007,556.49x = 3,872,259,486,976,700
  5. Step 5: Solve for x
    x = 3,872,259,486,976,700/72,007,556.49
  6. Step 6: Final answer
    x = 53,775,737.94

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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.