Home / 28,401,904,351.20-42,602,856,526.80-12,892,330,207.20

Finding the Fourth Proportional to 28,401,904,351.20, 42,602,856,526.80 and 12,892,330,207.20

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Solution

The fourth proportional to 28,401,904,351.20, 42,602,856,526.80 and 12,892,330,207.20 is: 19,338,495,310.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,401,904,351.20 : 42,602,856,526.80 = 12,892,330,207.20 : x
  2. Step 2: Convert to fraction form
    28,401,904,351.20/42,602,856,526.80 = 12,892,330,207.20/x
  3. Step 3: Cross multiply
    28,401,904,351.20x = 42,602,856,526.80 × 12,892,330,207.20
  4. Step 4: Simplify right side
    28,401,904,351.20x = 549,250,094,113,471,397,888
  5. Step 5: Solve for x
    x = 549,250,094,113,471,397,888/28,401,904,351.20
  6. Step 6: Final answer
    x = 19,338,495,310.80

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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.