Home / 30,900,300.15-42,642,460.92-16,771,491.70

Finding the Fourth Proportional to 30,900,300.15, 42,642,460.92 and 16,771,491.70

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Solution

The fourth proportional to 30,900,300.15, 42,642,460.92 and 16,771,491.70 is: 23,144,683.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,900,300.15 : 42,642,460.92 = 16,771,491.70 : x
  2. Step 2: Convert to fraction form
    30,900,300.15/42,642,460.92 = 16,771,491.70/x
  3. Step 3: Cross multiply
    30,900,300.15x = 42,642,460.92 × 16,771,491.70
  4. Step 4: Simplify right side
    30,900,300.15x = 715,177,679,280,748.25
  5. Step 5: Solve for x
    x = 715,177,679,280,748.25/30,900,300.15
  6. Step 6: Final answer
    x = 23,144,683.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.