Home / 187,035,266.40-280,074,602.70-138,248,982.60

Finding the Fourth Proportional to 187,035,266.40, 280,074,602.70 and 138,248,982.60

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Solution

The fourth proportional to 187,035,266.40, 280,074,602.70 and 138,248,982.60 is: 207,019,935.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,035,266.40 : 280,074,602.70 = 138,248,982.60 : x
  2. Step 2: Convert to fraction form
    187,035,266.40/280,074,602.70 = 138,248,982.60/x
  3. Step 3: Cross multiply
    187,035,266.40x = 280,074,602.70 × 138,248,982.60
  4. Step 4: Simplify right side
    187,035,266.40x = 38,720,028,875,374,208
  5. Step 5: Solve for x
    x = 38,720,028,875,374,208/187,035,266.40
  6. Step 6: Final answer
    x = 207,019,935.98

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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.