Home / 8,628,379,898.19-12,931,128,087.90-4,431,163,175.48

Finding the Fourth Proportional to 8,628,379,898.19, 12,931,128,087.90 and 4,431,163,175.48

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Solution

The fourth proportional to 8,628,379,898.19, 12,931,128,087.90 and 4,431,163,175.48 is: 6,640,868,769.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,628,379,898.19 : 12,931,128,087.90 = 4,431,163,175.48 : x
  2. Step 2: Convert to fraction form
    8,628,379,898.19/12,931,128,087.90 = 4,431,163,175.48/x
  3. Step 3: Cross multiply
    8,628,379,898.19x = 12,931,128,087.90 × 4,431,163,175.48
  4. Step 4: Simplify right side
    8,628,379,898.19x = 57,299,938,600,452,931,584
  5. Step 5: Solve for x
    x = 57,299,938,600,452,931,584/8,628,379,898.19
  6. Step 6: Final answer
    x = 6,640,868,769.87

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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.