Home / 138,077,549.83-190,551,058.51-75,357,670.58

Finding the Fourth Proportional to 138,077,549.83, 190,551,058.51 and 75,357,670.58

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Solution

The fourth proportional to 138,077,549.83, 190,551,058.51 and 75,357,670.58 is: 103,995,790.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,077,549.83 : 190,551,058.51 = 75,357,670.58 : x
  2. Step 2: Convert to fraction form
    138,077,549.83/190,551,058.51 = 75,357,670.58/x
  3. Step 3: Cross multiply
    138,077,549.83x = 190,551,058.51 × 75,357,670.58
  4. Step 4: Simplify right side
    138,077,549.83x = 14,359,483,896,154,868
  5. Step 5: Solve for x
    x = 14,359,483,896,154,868/138,077,549.83
  6. Step 6: Final answer
    x = 103,995,790.15

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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.