Home / 130,340,715.66-179,872,029.90-71,608,808.82

Finding the Fourth Proportional to 130,340,715.66, 179,872,029.90 and 71,608,808.82

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Solution

The fourth proportional to 130,340,715.66, 179,872,029.90 and 71,608,808.82 is: 98,821,168.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,340,715.66 : 179,872,029.90 = 71,608,808.82 : x
  2. Step 2: Convert to fraction form
    130,340,715.66/179,872,029.90 = 71,608,808.82/x
  3. Step 3: Cross multiply
    130,340,715.66x = 179,872,029.90 × 71,608,808.82
  4. Step 4: Simplify right side
    130,340,715.66x = 12,880,421,801,174,422
  5. Step 5: Solve for x
    x = 12,880,421,801,174,422/130,340,715.66
  6. Step 6: Final answer
    x = 98,821,168.32

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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.