Home / 280,547,057.98-387,166,896.58-156,787,731.46

Finding the Fourth Proportional to 280,547,057.98, 387,166,896.58 and 156,787,731.46

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Solution

The fourth proportional to 280,547,057.98, 387,166,896.58 and 156,787,731.46 is: 216,373,751.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,547,057.98 : 387,166,896.58 = 156,787,731.46 : x
  2. Step 2: Convert to fraction form
    280,547,057.98/387,166,896.58 = 156,787,731.46/x
  3. Step 3: Cross multiply
    280,547,057.98x = 387,166,896.58 × 156,787,731.46
  4. Step 4: Simplify right side
    280,547,057.98x = 60,703,019,409,250,800
  5. Step 5: Solve for x
    x = 60,703,019,409,250,800/280,547,057.98
  6. Step 6: Final answer
    x = 216,373,751.51

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1.5x scale

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.