Home / 128,449,797.95-177,262,045.83-69,712,970.33

Finding the Fourth Proportional to 128,449,797.95, 177,262,045.83 and 69,712,970.33

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Solution

The fourth proportional to 128,449,797.95, 177,262,045.83 and 69,712,970.33 is: 96,204,617.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,449,797.95 : 177,262,045.83 = 69,712,970.33 : x
  2. Step 2: Convert to fraction form
    128,449,797.95/177,262,045.83 = 69,712,970.33/x
  3. Step 3: Cross multiply
    128,449,797.95x = 177,262,045.83 × 69,712,970.33
  4. Step 4: Simplify right side
    128,449,797.95x = 12,357,463,740,695,582
  5. Step 5: Solve for x
    x = 12,357,463,740,695,582/128,449,797.95
  6. Step 6: Final answer
    x = 96,204,617.98

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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.