Home / 30,528,029.40-45,792,044.10-28,638,461.40

Finding the Fourth Proportional to 30,528,029.40, 45,792,044.10 and 28,638,461.40

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Solution

The fourth proportional to 30,528,029.40, 45,792,044.10 and 28,638,461.40 is: 42,957,692.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,528,029.40 : 45,792,044.10 = 28,638,461.40 : x
  2. Step 2: Convert to fraction form
    30,528,029.40/45,792,044.10 = 28,638,461.40/x
  3. Step 3: Cross multiply
    30,528,029.40x = 45,792,044.10 × 28,638,461.40
  4. Step 4: Simplify right side
    30,528,029.40x = 1,311,413,687,384,947.75
  5. Step 5: Solve for x
    x = 1,311,413,687,384,947.75/30,528,029.40
  6. Step 6: Final answer
    x = 42,957,692.10

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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.