Home / 15,391,792,313.61-21,241,548,649.17-8,617,551,627.21

Finding the Fourth Proportional to 15,391,792,313.61, 21,241,548,649.17 and 8,617,551,627.21

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Solution

The fourth proportional to 15,391,792,313.61, 21,241,548,649.17 and 8,617,551,627.21 is: 11,892,711,283.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,391,792,313.61 : 21,241,548,649.17 = 8,617,551,627.21 : x
  2. Step 2: Convert to fraction form
    15,391,792,313.61/21,241,548,649.17 = 8,617,551,627.21/x
  3. Step 3: Cross multiply
    15,391,792,313.61x = 21,241,548,649.17 × 8,617,551,627.21
  4. Step 4: Simplify right side
    15,391,792,313.61x = 183,050,142,126,115,291,136
  5. Step 5: Solve for x
    x = 183,050,142,126,115,291,136/15,391,792,313.61
  6. Step 6: Final answer
    x = 11,892,711,283.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.