Home / 20,178,173,428.65-30,267,260,142.98-6,909,021,680.40

Finding the Fourth Proportional to 20,178,173,428.65, 30,267,260,142.98 and 6,909,021,680.40

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Solution

The fourth proportional to 20,178,173,428.65, 30,267,260,142.98 and 6,909,021,680.40 is: 10,363,532,520.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,178,173,428.65 : 30,267,260,142.98 = 6,909,021,680.40 : x
  2. Step 2: Convert to fraction form
    20,178,173,428.65/30,267,260,142.98 = 6,909,021,680.40/x
  3. Step 3: Cross multiply
    20,178,173,428.65x = 30,267,260,142.98 × 6,909,021,680.40
  4. Step 4: Simplify right side
    20,178,173,428.65x = 209,117,156,534,121,070,592
  5. Step 5: Solve for x
    x = 209,117,156,534,121,070,592/20,178,173,428.65
  6. Step 6: Final answer
    x = 10,363,532,520.60

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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.