Home / 130,440,042-180,009,494.32-71,705,182.64

Finding the Fourth Proportional to 130,440,042, 180,009,494.32 and 71,705,182.64

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Solution

The fourth proportional to 130,440,042, 180,009,494.32 and 71,705,182.64 is: 98,954,381.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,440,042 : 180,009,494.32 = 71,705,182.64 : x
  2. Step 2: Convert to fraction form
    130,440,042/180,009,494.32 = 71,705,182.64/x
  3. Step 3: Cross multiply
    130,440,042x = 180,009,494.32 × 71,705,182.64
  4. Step 4: Simplify right side
    130,440,042x = 12,907,613,667,149,642
  5. Step 5: Solve for x
    x = 12,907,613,667,149,642/130,440,042
  6. Step 6: Final answer
    x = 98,954,381.41

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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.