Home / 142,240,010.40-213,369,346.80-40,007,383.20

Finding the Fourth Proportional to 142,240,010.40, 213,369,346.80 and 40,007,383.20

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Solution

The fourth proportional to 142,240,010.40, 213,369,346.80 and 40,007,383.20 is: 60,013,699.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,240,010.40 : 213,369,346.80 = 40,007,383.20 : x
  2. Step 2: Convert to fraction form
    142,240,010.40/213,369,346.80 = 40,007,383.20/x
  3. Step 3: Cross multiply
    142,240,010.40x = 213,369,346.80 × 40,007,383.20
  4. Step 4: Simplify right side
    142,240,010.40x = 8,536,349,220,561,295
  5. Step 5: Solve for x
    x = 8,536,349,220,561,295/142,240,010.40
  6. Step 6: Final answer
    x = 60,013,699.36

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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.