Home / 28,138,220.70-42,144,345.45-16,800,812.70

Finding the Fourth Proportional to 28,138,220.70, 42,144,345.45 and 16,800,812.70

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Solution

The fourth proportional to 28,138,220.70, 42,144,345.45 and 16,800,812.70 is: 25,163,611.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,138,220.70 : 42,144,345.45 = 16,800,812.70 : x
  2. Step 2: Convert to fraction form
    28,138,220.70/42,144,345.45 = 16,800,812.70/x
  3. Step 3: Cross multiply
    28,138,220.70x = 42,144,345.45 × 16,800,812.70
  4. Step 4: Simplify right side
    28,138,220.70x = 708,059,254,269,547.25
  5. Step 5: Solve for x
    x = 708,059,254,269,547.25/28,138,220.70
  6. Step 6: Final answer
    x = 25,163,611.51

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1.5x scale

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.