Home / 121,085,627.28-181,685,128.76-52,919,461.68

Finding the Fourth Proportional to 121,085,627.28, 181,685,128.76 and 52,919,461.68

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Solution

The fourth proportional to 121,085,627.28, 181,685,128.76 and 52,919,461.68 is: 79,403,967.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,085,627.28 : 181,685,128.76 = 52,919,461.68 : x
  2. Step 2: Convert to fraction form
    121,085,627.28/181,685,128.76 = 52,919,461.68/x
  3. Step 3: Cross multiply
    121,085,627.28x = 181,685,128.76 × 52,919,461.68
  4. Step 4: Simplify right side
    121,085,627.28x = 9,614,679,209,240,686
  5. Step 5: Solve for x
    x = 9,614,679,209,240,686/121,085,627.28
  6. Step 6: Final answer
    x = 79,403,967.47

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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.