Home / 128,009,950.52-176,610,486.83-83,335,580.28

Finding the Fourth Proportional to 128,009,950.52, 176,610,486.83 and 83,335,580.28

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Solution

The fourth proportional to 128,009,950.52, 176,610,486.83 and 83,335,580.28 is: 114,974,947.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,009,950.52 : 176,610,486.83 = 83,335,580.28 : x
  2. Step 2: Convert to fraction form
    128,009,950.52/176,610,486.83 = 83,335,580.28/x
  3. Step 3: Cross multiply
    128,009,950.52x = 176,610,486.83 × 83,335,580.28
  4. Step 4: Simplify right side
    128,009,950.52x = 14,717,937,403,094,670
  5. Step 5: Solve for x
    x = 14,717,937,403,094,670/128,009,950.52
  6. Step 6: Final answer
    x = 114,974,947.99

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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.