Home / 687,124,173.66-1,031,654,811.69-492,929,727.36

Finding the Fourth Proportional to 687,124,173.66, 1,031,654,811.69 and 492,929,727.36

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Solution

The fourth proportional to 687,124,173.66, 1,031,654,811.69 and 492,929,727.36 is: 740,089,411.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,124,173.66 : 1,031,654,811.69 = 492,929,727.36 : x
  2. Step 2: Convert to fraction form
    687,124,173.66/1,031,654,811.69 = 492,929,727.36/x
  3. Step 3: Cross multiply
    687,124,173.66x = 1,031,654,811.69 × 492,929,727.36
  4. Step 4: Simplify right side
    687,124,173.66x = 508,533,325,055,983,872
  5. Step 5: Solve for x
    x = 508,533,325,055,983,872/687,124,173.66
  6. Step 6: Final answer
    x = 740,089,411.13

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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.