Home / 1,042,590,608.70-1,564,452,783.45-429,236,835.90

Finding the Fourth Proportional to 1,042,590,608.70, 1,564,452,783.45 and 429,236,835.90

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Solution

The fourth proportional to 1,042,590,608.70, 1,564,452,783.45 and 429,236,835.90 is: 644,088,635.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042,590,608.70 : 1,564,452,783.45 = 429,236,835.90 : x
  2. Step 2: Convert to fraction form
    1,042,590,608.70/1,564,452,783.45 = 429,236,835.90/x
  3. Step 3: Cross multiply
    1,042,590,608.70x = 1,564,452,783.45 × 429,236,835.90
  4. Step 4: Simplify right side
    1,042,590,608.70x = 671,520,762,683,025,920
  5. Step 5: Solve for x
    x = 671,520,762,683,025,920/1,042,590,608.70
  6. Step 6: Final answer
    x = 644,088,635.63

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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.