Home / 84,007,132.80-125,868,981.60-40,783,264.80

Finding the Fourth Proportional to 84,007,132.80, 125,868,981.60 and 40,783,264.80

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Solution

The fourth proportional to 84,007,132.80, 125,868,981.60 and 40,783,264.80 is: 61,106,097.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,007,132.80 : 125,868,981.60 = 40,783,264.80 : x
  2. Step 2: Convert to fraction form
    84,007,132.80/125,868,981.60 = 40,783,264.80/x
  3. Step 3: Cross multiply
    84,007,132.80x = 125,868,981.60 × 40,783,264.80
  4. Step 4: Simplify right side
    84,007,132.80x = 5,133,348,006,699,127
  5. Step 5: Solve for x
    x = 5,133,348,006,699,127/84,007,132.80
  6. Step 6: Final answer
    x = 61,106,097.01

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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.