Home / 77,292,153.24-115,938,153.72-19,784,332.68

Finding the Fourth Proportional to 77,292,153.24, 115,938,153.72 and 19,784,332.68

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Solution

The fourth proportional to 77,292,153.24, 115,938,153.72 and 19,784,332.68 is: 29,676,479.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,292,153.24 : 115,938,153.72 = 19,784,332.68 : x
  2. Step 2: Convert to fraction form
    77,292,153.24/115,938,153.72 = 19,784,332.68/x
  3. Step 3: Cross multiply
    77,292,153.24x = 115,938,153.72 × 19,784,332.68
  4. Step 4: Simplify right side
    77,292,153.24x = 2,293,759,003,501,459.50
  5. Step 5: Solve for x
    x = 2,293,759,003,501,459.50/77,292,153.24
  6. Step 6: Final answer
    x = 29,676,479.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.