Home / 42,747,674.60-64,163,502.30-21,206,599.40

Finding the Fourth Proportional to 42,747,674.60, 64,163,502.30 and 21,206,599.40

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Solution

The fourth proportional to 42,747,674.60, 64,163,502.30 and 21,206,599.40 is: 31,830,730.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,747,674.60 : 64,163,502.30 = 21,206,599.40 : x
  2. Step 2: Convert to fraction form
    42,747,674.60/64,163,502.30 = 21,206,599.40/x
  3. Step 3: Cross multiply
    42,747,674.60x = 64,163,502.30 × 21,206,599.40
  4. Step 4: Simplify right side
    42,747,674.60x = 1,360,689,689,377,078.50
  5. Step 5: Solve for x
    x = 1,360,689,689,377,078.50/42,747,674.60
  6. Step 6: Final answer
    x = 31,830,730.02

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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.