Home / 155,945,355.47-215,196,064.73-85,367,312.27

Finding the Fourth Proportional to 155,945,355.47, 215,196,064.73 and 85,367,312.27

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Solution

The fourth proportional to 155,945,355.47, 215,196,064.73 and 85,367,312.27 is: 117,802,223.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,945,355.47 : 215,196,064.73 = 85,367,312.27 : x
  2. Step 2: Convert to fraction form
    155,945,355.47/215,196,064.73 = 85,367,312.27/x
  3. Step 3: Cross multiply
    155,945,355.47x = 215,196,064.73 × 85,367,312.27
  4. Step 4: Simplify right side
    155,945,355.47x = 18,370,709,655,578,224
  5. Step 5: Solve for x
    x = 18,370,709,655,578,224/155,945,355.47
  6. Step 6: Final answer
    x = 117,802,223.74

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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.