Home / 138,478,313.08-190,099,375.43-118,865,151.28

Finding the Fourth Proportional to 138,478,313.08, 190,099,375.43 and 118,865,151.28

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Solution

The fourth proportional to 138,478,313.08, 190,099,375.43 and 118,865,151.28 is: 163,174,944.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,478,313.08 : 190,099,375.43 = 118,865,151.28 : x
  2. Step 2: Convert to fraction form
    138,478,313.08/190,099,375.43 = 118,865,151.28/x
  3. Step 3: Cross multiply
    138,478,313.08x = 190,099,375.43 × 118,865,151.28
  4. Step 4: Simplify right side
    138,478,313.08x = 22,596,191,018,720,468
  5. Step 5: Solve for x
    x = 22,596,191,018,720,468/138,478,313.08
  6. Step 6: Final answer
    x = 163,174,944.26

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.