Home / 12,152,997,509.10-18,218,017,138.05-7,182,536,124.30

Finding the Fourth Proportional to 12,152,997,509.10, 18,218,017,138.05 and 7,182,536,124.30

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Solution

The fourth proportional to 12,152,997,509.10, 18,218,017,138.05 and 7,182,536,124.30 is: 10,767,019,914.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,152,997,509.10 : 18,218,017,138.05 = 7,182,536,124.30 : x
  2. Step 2: Convert to fraction form
    12,152,997,509.10/18,218,017,138.05 = 7,182,536,124.30/x
  3. Step 3: Cross multiply
    12,152,997,509.10x = 18,218,017,138.05 × 7,182,536,124.30
  4. Step 4: Simplify right side
    12,152,997,509.10x = 130,851,566,207,160,614,912
  5. Step 5: Solve for x
    x = 130,851,566,207,160,614,912/12,152,997,509.10
  6. Step 6: Final answer
    x = 10,767,019,914.98

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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.