Home / 1,166,933,987.79-1,610,373,721.76-631,085,641.12

Finding the Fourth Proportional to 1,166,933,987.79, 1,610,373,721.76 and 631,085,641.12

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Solution

The fourth proportional to 1,166,933,987.79, 1,610,373,721.76 and 631,085,641.12 is: 870,900,790.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,166,933,987.79 : 1,610,373,721.76 = 631,085,641.12 : x
  2. Step 2: Convert to fraction form
    1,166,933,987.79/1,610,373,721.76 = 631,085,641.12/x
  3. Step 3: Cross multiply
    1,166,933,987.79x = 1,610,373,721.76 × 631,085,641.12
  4. Step 4: Simplify right side
    1,166,933,987.79x = 1,016,283,732,639,710,080
  5. Step 5: Solve for x
    x = 1,016,283,732,639,710,080/1,166,933,987.79
  6. Step 6: Final answer
    x = 870,900,790.68

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Double scale
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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.