Home / 169,149,798,853.65-253,836,478,040.85-79,638,390,782.18

Finding the Fourth Proportional to 169,149,798,853.65, 253,836,478,040.85 and 79,638,390,782.18

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Solution

The fourth proportional to 169,149,798,853.65, 253,836,478,040.85 and 79,638,390,782.18 is: 119,510,213,845.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,149,798,853.65 : 253,836,478,040.85 = 79,638,390,782.18 : x
  2. Step 2: Convert to fraction form
    169,149,798,853.65/253,836,478,040.85 = 79,638,390,782.18/x
  3. Step 3: Cross multiply
    169,149,798,853.65x = 253,836,478,040.85 × 79,638,390,782.18
  4. Step 4: Simplify right side
    169,149,798,853.65x = 20,215,128,632,988,195,094,528
  5. Step 5: Solve for x
    x = 20,215,128,632,988,195,094,528/169,149,798,853.65
  6. Step 6: Final answer
    x = 119,510,213,845.89

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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.