Home / 172,402,577.47-238,051,116.23-138,805,333.68

Finding the Fourth Proportional to 172,402,577.47, 238,051,116.23 and 138,805,333.68

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Solution

The fourth proportional to 172,402,577.47, 238,051,116.23 and 138,805,333.68 is: 191,660,502.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,402,577.47 : 238,051,116.23 = 138,805,333.68 : x
  2. Step 2: Convert to fraction form
    172,402,577.47/238,051,116.23 = 138,805,333.68/x
  3. Step 3: Cross multiply
    172,402,577.47x = 238,051,116.23 × 138,805,333.68
  4. Step 4: Simplify right side
    172,402,577.47x = 33,042,764,621,201,612
  5. Step 5: Solve for x
    x = 33,042,764,621,201,612/172,402,577.47
  6. Step 6: Final answer
    x = 191,660,502.45

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1.5x scale

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.