Home / 142,665,655.26-196,878,632.80-86,911,072.74

Finding the Fourth Proportional to 142,665,655.26, 196,878,632.80 and 86,911,072.74

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Solution

The fourth proportional to 142,665,655.26, 196,878,632.80 and 86,911,072.74 is: 119,937,297.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,665,655.26 : 196,878,632.80 = 86,911,072.74 : x
  2. Step 2: Convert to fraction form
    142,665,655.26/196,878,632.80 = 86,911,072.74/x
  3. Step 3: Cross multiply
    142,665,655.26x = 196,878,632.80 × 86,911,072.74
  4. Step 4: Simplify right side
    142,665,655.26x = 17,110,933,176,232,550
  5. Step 5: Solve for x
    x = 17,110,933,176,232,550/142,665,655.26
  6. Step 6: Final answer
    x = 119,937,297.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.