Home / 30,339,965.60-45,509,948.40-20,136,298.40

Finding the Fourth Proportional to 30,339,965.60, 45,509,948.40 and 20,136,298.40

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Solution

The fourth proportional to 30,339,965.60, 45,509,948.40 and 20,136,298.40 is: 30,204,447.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,339,965.60 : 45,509,948.40 = 20,136,298.40 : x
  2. Step 2: Convert to fraction form
    30,339,965.60/45,509,948.40 = 20,136,298.40/x
  3. Step 3: Cross multiply
    30,339,965.60x = 45,509,948.40 × 20,136,298.40
  4. Step 4: Simplify right side
    30,339,965.60x = 916,401,901,151,002.50
  5. Step 5: Solve for x
    x = 916,401,901,151,002.50/30,339,965.60
  6. Step 6: Final answer
    x = 30,204,447.60

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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.