Home / 128,860,372.24-177,827,340-70,913,620.24

Finding the Fourth Proportional to 128,860,372.24, 177,827,340 and 70,913,620.24

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Solution

The fourth proportional to 128,860,372.24, 177,827,340 and 70,913,620.24 is: 97,860,810.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,860,372.24 : 177,827,340 = 70,913,620.24 : x
  2. Step 2: Convert to fraction form
    128,860,372.24/177,827,340 = 70,913,620.24/x
  3. Step 3: Cross multiply
    128,860,372.24x = 177,827,340 × 70,913,620.24
  4. Step 4: Simplify right side
    128,860,372.24x = 12,610,380,457,049,360
  5. Step 5: Solve for x
    x = 12,610,380,457,049,360/128,860,372.24
  6. Step 6: Final answer
    x = 97,860,810.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.