Home / 28,401,904,359.70-42,602,856,539.55-12,892,330,215.70

Finding the Fourth Proportional to 28,401,904,359.70, 42,602,856,539.55 and 12,892,330,215.70

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Solution

The fourth proportional to 28,401,904,359.70, 42,602,856,539.55 and 12,892,330,215.70 is: 19,338,495,323.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,401,904,359.70 : 42,602,856,539.55 = 12,892,330,215.70 : x
  2. Step 2: Convert to fraction form
    28,401,904,359.70/42,602,856,539.55 = 12,892,330,215.70/x
  3. Step 3: Cross multiply
    28,401,904,359.70x = 42,602,856,539.55 × 12,892,330,215.70
  4. Step 4: Simplify right side
    28,401,904,359.70x = 549,250,094,639,972,876,288
  5. Step 5: Solve for x
    x = 549,250,094,639,972,876,288/28,401,904,359.70
  6. Step 6: Final answer
    x = 19,338,495,323.55

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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.