Home / 30,343,631.80-45,515,447.70-9,875,280.10

Finding the Fourth Proportional to 30,343,631.80, 45,515,447.70 and 9,875,280.10

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Solution

The fourth proportional to 30,343,631.80, 45,515,447.70 and 9,875,280.10 is: 14,812,920.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,343,631.80 : 45,515,447.70 = 9,875,280.10 : x
  2. Step 2: Convert to fraction form
    30,343,631.80/45,515,447.70 = 9,875,280.10/x
  3. Step 3: Cross multiply
    30,343,631.80x = 45,515,447.70 × 9,875,280.10
  4. Step 4: Simplify right side
    30,343,631.80x = 449,477,794,914,400.81
  5. Step 5: Solve for x
    x = 449,477,794,914,400.81/30,343,631.80
  6. Step 6: Final answer
    x = 14,812,920.15

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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.