Home / 878,893,176.70-1,213,879,205.46-578,819,885.50

Finding the Fourth Proportional to 878,893,176.70, 1,213,879,205.46 and 578,819,885.50

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Solution

The fourth proportional to 878,893,176.70, 1,213,879,205.46 and 578,819,885.50 is: 799,434,381.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,893,176.70 : 1,213,879,205.46 = 578,819,885.50 : x
  2. Step 2: Convert to fraction form
    878,893,176.70/1,213,879,205.46 = 578,819,885.50/x
  3. Step 3: Cross multiply
    878,893,176.70x = 1,213,879,205.46 × 578,819,885.50
  4. Step 4: Simplify right side
    878,893,176.70x = 702,617,422,715,188,224
  5. Step 5: Solve for x
    x = 702,617,422,715,188,224/878,893,176.70
  6. Step 6: Final answer
    x = 799,434,381.04

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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.