Home / 84,102,038.86-126,152,528.92-45,258,787.81

Finding the Fourth Proportional to 84,102,038.86, 126,152,528.92 and 45,258,787.81

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Solution

The fourth proportional to 84,102,038.86, 126,152,528.92 and 45,258,787.81 is: 67,887,896.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,102,038.86 : 126,152,528.92 = 45,258,787.81 : x
  2. Step 2: Convert to fraction form
    84,102,038.86/126,152,528.92 = 45,258,787.81/x
  3. Step 3: Cross multiply
    84,102,038.86x = 126,152,528.92 × 45,258,787.81
  4. Step 4: Simplify right side
    84,102,038.86x = 5,709,510,538,085,169
  5. Step 5: Solve for x
    x = 5,709,510,538,085,169/84,102,038.86
  6. Step 6: Final answer
    x = 67,887,896.84

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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.