Home / 28,778,689.59-39,714,697.41-15,725,950.47

Finding the Fourth Proportional to 28,778,689.59, 39,714,697.41 and 15,725,950.47

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Solution

The fourth proportional to 28,778,689.59, 39,714,697.41 and 15,725,950.47 is: 21,701,869.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,778,689.59 : 39,714,697.41 = 15,725,950.47 : x
  2. Step 2: Convert to fraction form
    28,778,689.59/39,714,697.41 = 15,725,950.47/x
  3. Step 3: Cross multiply
    28,778,689.59x = 39,714,697.41 × 15,725,950.47
  4. Step 4: Simplify right side
    28,778,689.59x = 624,551,364,400,697.25
  5. Step 5: Solve for x
    x = 624,551,364,400,697.25/28,778,689.59
  6. Step 6: Final answer
    x = 21,701,869.45

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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.