Home / 1,170,587,390.12-1,615,262,127-641,812,231.52

Finding the Fourth Proportional to 1,170,587,390.12, 1,615,262,127 and 641,812,231.52

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Solution

The fourth proportional to 1,170,587,390.12, 1,615,262,127 and 641,812,231.52 is: 885,619,475.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,170,587,390.12 : 1,615,262,127 = 641,812,231.52 : x
  2. Step 2: Convert to fraction form
    1,170,587,390.12/1,615,262,127 = 641,812,231.52/x
  3. Step 3: Cross multiply
    1,170,587,390.12x = 1,615,262,127 × 641,812,231.52
  4. Step 4: Simplify right side
    1,170,587,390.12x = 1,036,694,990,219,611,648
  5. Step 5: Solve for x
    x = 1,036,694,990,219,611,648/1,170,587,390.12
  6. Step 6: Final answer
    x = 885,619,475.29

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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.