Home / 30,328,491.40-45,492,737.10-16,865,319.40

Finding the Fourth Proportional to 30,328,491.40, 45,492,737.10 and 16,865,319.40

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Solution

The fourth proportional to 30,328,491.40, 45,492,737.10 and 16,865,319.40 is: 25,297,979.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,328,491.40 : 45,492,737.10 = 16,865,319.40 : x
  2. Step 2: Convert to fraction form
    30,328,491.40/45,492,737.10 = 16,865,319.40/x
  3. Step 3: Cross multiply
    30,328,491.40x = 45,492,737.10 × 16,865,319.40
  4. Step 4: Simplify right side
    30,328,491.40x = 767,249,541,571,729.75
  5. Step 5: Solve for x
    x = 767,249,541,571,729.75/30,328,491.40
  6. Step 6: Final answer
    x = 25,297,979.10

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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.