Home / 685,492,864.88-1,027,521,714.20-286,879,829.90

Finding the Fourth Proportional to 685,492,864.88, 1,027,521,714.20 and 286,879,829.90

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Solution

The fourth proportional to 685,492,864.88, 1,027,521,714.20 and 286,879,829.90 is: 430,019,435.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,492,864.88 : 1,027,521,714.20 = 286,879,829.90 : x
  2. Step 2: Convert to fraction form
    685,492,864.88/1,027,521,714.20 = 286,879,829.90/x
  3. Step 3: Cross multiply
    685,492,864.88x = 1,027,521,714.20 × 286,879,829.90
  4. Step 4: Simplify right side
    685,492,864.88x = 294,775,254,581,680,384
  5. Step 5: Solve for x
    x = 294,775,254,581,680,384/685,492,864.88
  6. Step 6: Final answer
    x = 430,019,435.19

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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.