Home / 687,479,143.04-1,031,208,610.40-169,909,628.16

Finding the Fourth Proportional to 687,479,143.04, 1,031,208,610.40 and 169,909,628.16

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Solution

The fourth proportional to 687,479,143.04, 1,031,208,610.40 and 169,909,628.16 is: 254,861,945.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,479,143.04 : 1,031,208,610.40 = 169,909,628.16 : x
  2. Step 2: Convert to fraction form
    687,479,143.04/1,031,208,610.40 = 169,909,628.16/x
  3. Step 3: Cross multiply
    687,479,143.04x = 1,031,208,610.40 × 169,909,628.16
  4. Step 4: Simplify right side
    687,479,143.04x = 175,212,271,548,454,304
  5. Step 5: Solve for x
    x = 175,212,271,548,454,304/687,479,143.04
  6. Step 6: Final answer
    x = 254,861,945.01

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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.