Home / 401,532,135.40-602,177,588.70-142,713,332.20

Finding the Fourth Proportional to 401,532,135.40, 602,177,588.70 and 142,713,332.20

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Solution

The fourth proportional to 401,532,135.40, 602,177,588.70 and 142,713,332.20 is: 214,027,129.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,532,135.40 : 602,177,588.70 = 142,713,332.20 : x
  2. Step 2: Convert to fraction form
    401,532,135.40/602,177,588.70 = 142,713,332.20/x
  3. Step 3: Cross multiply
    401,532,135.40x = 602,177,588.70 × 142,713,332.20
  4. Step 4: Simplify right side
    401,532,135.40x = 85,938,770,259,538,064
  5. Step 5: Solve for x
    x = 85,938,770,259,538,064/401,532,135.40
  6. Step 6: Final answer
    x = 214,027,129.30

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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.