Home / 858,774,740.10-1,288,162,110.15-306,700,543.28

Finding the Fourth Proportional to 858,774,740.10, 1,288,162,110.15 and 306,700,543.28

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Solution

The fourth proportional to 858,774,740.10, 1,288,162,110.15 and 306,700,543.28 is: 460,050,814.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,774,740.10 : 1,288,162,110.15 = 306,700,543.28 : x
  2. Step 2: Convert to fraction form
    858,774,740.10/1,288,162,110.15 = 306,700,543.28/x
  3. Step 3: Cross multiply
    858,774,740.10x = 1,288,162,110.15 × 306,700,543.28
  4. Step 4: Simplify right side
    858,774,740.10x = 395,080,019,009,275,392
  5. Step 5: Solve for x
    x = 395,080,019,009,275,392/858,774,740.10
  6. Step 6: Final answer
    x = 460,050,814.91

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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.