Home / 991,035,803.79-1,367,242,334.32-567,423,069.38

Finding the Fourth Proportional to 991,035,803.79, 1,367,242,334.32 and 567,423,069.38

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Solution

The fourth proportional to 991,035,803.79, 1,367,242,334.32 and 567,423,069.38 is: 782,822,213.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,035,803.79 : 1,367,242,334.32 = 567,423,069.38 : x
  2. Step 2: Convert to fraction form
    991,035,803.79/1,367,242,334.32 = 567,423,069.38/x
  3. Step 3: Cross multiply
    991,035,803.79x = 1,367,242,334.32 × 567,423,069.38
  4. Step 4: Simplify right side
    991,035,803.79x = 775,804,841,926,130,432
  5. Step 5: Solve for x
    x = 775,804,841,926,130,432/991,035,803.79
  6. Step 6: Final answer
    x = 782,822,213.85

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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.