Home / 126,105,662.40-189,144,496.80-103,346,865.60

Finding the Fourth Proportional to 126,105,662.40, 189,144,496.80 and 103,346,865.60

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Solution

The fourth proportional to 126,105,662.40, 189,144,496.80 and 103,346,865.60 is: 155,008,827.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,105,662.40 : 189,144,496.80 = 103,346,865.60 : x
  2. Step 2: Convert to fraction form
    126,105,662.40/189,144,496.80 = 103,346,865.60/x
  3. Step 3: Cross multiply
    126,105,662.40x = 189,144,496.80 × 103,346,865.60
  4. Step 4: Simplify right side
    126,105,662.40x = 19,547,490,889,769,232
  5. Step 5: Solve for x
    x = 19,547,490,889,769,232/126,105,662.40
  6. Step 6: Final answer
    x = 155,008,827.66

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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.