Home / 28,448,417.85-39,258,941.84-15,395,678.79

Finding the Fourth Proportional to 28,448,417.85, 39,258,941.84 and 15,395,678.79

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Solution

The fourth proportional to 28,448,417.85, 39,258,941.84 and 15,395,678.79 is: 21,246,104.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,448,417.85 : 39,258,941.84 = 15,395,678.79 : x
  2. Step 2: Convert to fraction form
    28,448,417.85/39,258,941.84 = 15,395,678.79/x
  3. Step 3: Cross multiply
    28,448,417.85x = 39,258,941.84 × 15,395,678.79
  4. Step 4: Simplify right side
    28,448,417.85x = 604,418,058,126,953.12
  5. Step 5: Solve for x
    x = 604,418,058,126,953.12/28,448,417.85
  6. Step 6: Final answer
    x = 21,246,104.49

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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.