Home / 20,495,079,143.40-30,742,618,715.10-12,223,306,266.60

Finding the Fourth Proportional to 20,495,079,143.40, 30,742,618,715.10 and 12,223,306,266.60

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Solution

The fourth proportional to 20,495,079,143.40, 30,742,618,715.10 and 12,223,306,266.60 is: 18,334,959,399.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,495,079,143.40 : 30,742,618,715.10 = 12,223,306,266.60 : x
  2. Step 2: Convert to fraction form
    20,495,079,143.40/30,742,618,715.10 = 12,223,306,266.60/x
  3. Step 3: Cross multiply
    20,495,079,143.40x = 30,742,618,715.10 × 12,223,306,266.60
  4. Step 4: Simplify right side
    20,495,079,143.40x = 375,776,443,991,976,247,296
  5. Step 5: Solve for x
    x = 375,776,443,991,976,247,296/20,495,079,143.40
  6. Step 6: Final answer
    x = 18,334,959,399.90

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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.