Home / 142,132,667.04-213,198,970.32-77,490,837.36

Finding the Fourth Proportional to 142,132,667.04, 213,198,970.32 and 77,490,837.36

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Solution

The fourth proportional to 142,132,667.04, 213,198,970.32 and 77,490,837.36 is: 116,236,239.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,132,667.04 : 213,198,970.32 = 77,490,837.36 : x
  2. Step 2: Convert to fraction form
    142,132,667.04/213,198,970.32 = 77,490,837.36/x
  3. Step 3: Cross multiply
    142,132,667.04x = 213,198,970.32 × 77,490,837.36
  4. Step 4: Simplify right side
    142,132,667.04x = 16,520,966,734,386,586
  5. Step 5: Solve for x
    x = 16,520,966,734,386,586/142,132,667.04
  6. Step 6: Final answer
    x = 116,236,239.55

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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.