Home / 8,581,806,490.40-12,872,709,735.60-7,418,588,429.60

Finding the Fourth Proportional to 8,581,806,490.40, 12,872,709,735.60 and 7,418,588,429.60

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Solution

The fourth proportional to 8,581,806,490.40, 12,872,709,735.60 and 7,418,588,429.60 is: 11,127,882,644.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,581,806,490.40 : 12,872,709,735.60 = 7,418,588,429.60 : x
  2. Step 2: Convert to fraction form
    8,581,806,490.40/12,872,709,735.60 = 7,418,588,429.60/x
  3. Step 3: Cross multiply
    8,581,806,490.40x = 12,872,709,735.60 × 7,418,588,429.60
  4. Step 4: Simplify right side
    8,581,806,490.40x = 95,497,335,502,121,435,136
  5. Step 5: Solve for x
    x = 95,497,335,502,121,435,136/8,581,806,490.40
  6. Step 6: Final answer
    x = 11,127,882,644.40

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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.