Home / 845,046,564.78-1,164,816,829.76-666,138,695.92

Finding the Fourth Proportional to 845,046,564.78, 1,164,816,829.76 and 666,138,695.92

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Solution

The fourth proportional to 845,046,564.78, 1,164,816,829.76 and 666,138,695.92 is: 918,209,239.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,046,564.78 : 1,164,816,829.76 = 666,138,695.92 : x
  2. Step 2: Convert to fraction form
    845,046,564.78/1,164,816,829.76 = 666,138,695.92/x
  3. Step 3: Cross multiply
    845,046,564.78x = 1,164,816,829.76 × 666,138,695.92
  4. Step 4: Simplify right side
    845,046,564.78x = 775,929,563,958,664,320
  5. Step 5: Solve for x
    x = 775,929,563,958,664,320/845,046,564.78
  6. Step 6: Final answer
    x = 918,209,239.94

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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.