Home / 100,457,032.44-138,535,470.54-65,679,533.40

Finding the Fourth Proportional to 100,457,032.44, 138,535,470.54 and 65,679,533.40

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Solution

The fourth proportional to 100,457,032.44, 138,535,470.54 and 65,679,533.40 is: 90,575,491.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,457,032.44 : 138,535,470.54 = 65,679,533.40 : x
  2. Step 2: Convert to fraction form
    100,457,032.44/138,535,470.54 = 65,679,533.40/x
  3. Step 3: Cross multiply
    100,457,032.44x = 138,535,470.54 × 65,679,533.40
  4. Step 4: Simplify right side
    100,457,032.44x = 9,098,945,064,416,646
  5. Step 5: Solve for x
    x = 9,098,945,064,416,646/100,457,032.44
  6. Step 6: Final answer
    x = 90,575,491.27

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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.