Home / 42,725,145.20-64,087,717.80-31,303,756.40

Finding the Fourth Proportional to 42,725,145.20, 64,087,717.80 and 31,303,756.40

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Solution

The fourth proportional to 42,725,145.20, 64,087,717.80 and 31,303,756.40 is: 46,955,634.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,725,145.20 : 64,087,717.80 = 31,303,756.40 : x
  2. Step 2: Convert to fraction form
    42,725,145.20/64,087,717.80 = 31,303,756.40/x
  3. Step 3: Cross multiply
    42,725,145.20x = 64,087,717.80 × 31,303,756.40
  4. Step 4: Simplify right side
    42,725,145.20x = 2,006,186,306,243,143.75
  5. Step 5: Solve for x
    x = 2,006,186,306,243,143.75/42,725,145.20
  6. Step 6: Final answer
    x = 46,955,634.60

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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.