Home / 28,996,863.15-40,014,903.51-15,765,622.50

Finding the Fourth Proportional to 28,996,863.15, 40,014,903.51 and 15,765,622.50

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Solution

The fourth proportional to 28,996,863.15, 40,014,903.51 and 15,765,622.50 is: 21,756,141.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,996,863.15 : 40,014,903.51 = 15,765,622.50 : x
  2. Step 2: Convert to fraction form
    28,996,863.15/40,014,903.51 = 15,765,622.50/x
  3. Step 3: Cross multiply
    28,996,863.15x = 40,014,903.51 × 15,765,622.50
  4. Step 4: Simplify right side
    28,996,863.15x = 630,859,863,112,585
  5. Step 5: Solve for x
    x = 630,859,863,112,585/28,996,863.15
  6. Step 6: Final answer
    x = 21,756,141.69

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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.