Home / 315,901,010.40-473,851,515.60-100,512,031.20

Finding the Fourth Proportional to 315,901,010.40, 473,851,515.60 and 100,512,031.20

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Solution

The fourth proportional to 315,901,010.40, 473,851,515.60 and 100,512,031.20 is: 150,768,046.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,901,010.40 : 473,851,515.60 = 100,512,031.20 : x
  2. Step 2: Convert to fraction form
    315,901,010.40/473,851,515.60 = 100,512,031.20/x
  3. Step 3: Cross multiply
    315,901,010.40x = 473,851,515.60 × 100,512,031.20
  4. Step 4: Simplify right side
    315,901,010.40x = 47,627,778,320,154,488
  5. Step 5: Solve for x
    x = 47,627,778,320,154,488/315,901,010.40
  6. Step 6: Final answer
    x = 150,768,046.80

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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.