Home / 30,369,910.80-45,554,866.20-28,031,570.40

Finding the Fourth Proportional to 30,369,910.80, 45,554,866.20 and 28,031,570.40

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Solution

The fourth proportional to 30,369,910.80, 45,554,866.20 and 28,031,570.40 is: 42,047,355.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,369,910.80 : 45,554,866.20 = 28,031,570.40 : x
  2. Step 2: Convert to fraction form
    30,369,910.80/45,554,866.20 = 28,031,570.40/x
  3. Step 3: Cross multiply
    30,369,910.80x = 45,554,866.20 × 28,031,570.40
  4. Step 4: Simplify right side
    30,369,910.80x = 1,276,974,438,947,880.50
  5. Step 5: Solve for x
    x = 1,276,974,438,947,880.50/30,369,910.80
  6. Step 6: Final answer
    x = 42,047,355.60

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1.5x scale

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.