Home / 100,308,277.67-138,426,425.89-56,254,330.68

Finding the Fourth Proportional to 100,308,277.67, 138,426,425.89 and 56,254,330.68

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Solution

The fourth proportional to 100,308,277.67, 138,426,425.89 and 56,254,330.68 is: 77,631,538.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,308,277.67 : 138,426,425.89 = 56,254,330.68 : x
  2. Step 2: Convert to fraction form
    100,308,277.67/138,426,425.89 = 56,254,330.68/x
  3. Step 3: Cross multiply
    100,308,277.67x = 138,426,425.89 × 56,254,330.68
  4. Step 4: Simplify right side
    100,308,277.67x = 7,787,085,936,206,838
  5. Step 5: Solve for x
    x = 7,787,085,936,206,838/100,308,277.67
  6. Step 6: Final answer
    x = 77,631,538.67

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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.