Home / 31,912,848,014.40-47,869,272,021.60-18,688,895,323.20

Finding the Fourth Proportional to 31,912,848,014.40, 47,869,272,021.60 and 18,688,895,323.20

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Solution

The fourth proportional to 31,912,848,014.40, 47,869,272,021.60 and 18,688,895,323.20 is: 28,033,342,984.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,912,848,014.40 : 47,869,272,021.60 = 18,688,895,323.20 : x
  2. Step 2: Convert to fraction form
    31,912,848,014.40/47,869,272,021.60 = 18,688,895,323.20/x
  3. Step 3: Cross multiply
    31,912,848,014.40x = 47,869,272,021.60 × 18,688,895,323.20
  4. Step 4: Simplify right side
    31,912,848,014.40x = 894,623,814,009,468,878,848
  5. Step 5: Solve for x
    x = 894,623,814,009,468,878,848/31,912,848,014.40
  6. Step 6: Final answer
    x = 28,033,342,984.80

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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.