Home / 207,348,837.90-311,023,256.85-125,985,220.80

Finding the Fourth Proportional to 207,348,837.90, 311,023,256.85 and 125,985,220.80

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Solution

The fourth proportional to 207,348,837.90, 311,023,256.85 and 125,985,220.80 is: 188,977,831.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,348,837.90 : 311,023,256.85 = 125,985,220.80 : x
  2. Step 2: Convert to fraction form
    207,348,837.90/311,023,256.85 = 125,985,220.80/x
  3. Step 3: Cross multiply
    207,348,837.90x = 311,023,256.85 × 125,985,220.80
  4. Step 4: Simplify right side
    207,348,837.90x = 39,184,333,688,182,368
  5. Step 5: Solve for x
    x = 39,184,333,688,182,368/207,348,837.90
  6. Step 6: Final answer
    x = 188,977,831.20

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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.