Home / 1,187,373,803.55-1,638,575,211.98-651,528,986.87

Finding the Fourth Proportional to 1,187,373,803.55, 1,638,575,211.98 and 651,528,986.87

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Solution

The fourth proportional to 1,187,373,803.55, 1,638,575,211.98 and 651,528,986.87 is: 899,109,652.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,373,803.55 : 1,638,575,211.98 = 651,528,986.87 : x
  2. Step 2: Convert to fraction form
    1,187,373,803.55/1,638,575,211.98 = 651,528,986.87/x
  3. Step 3: Cross multiply
    1,187,373,803.55x = 1,638,575,211.98 × 651,528,986.87
  4. Step 4: Simplify right side
    1,187,373,803.55x = 1,067,579,247,765,060,864
  5. Step 5: Solve for x
    x = 1,067,579,247,765,060,864/1,187,373,803.55
  6. Step 6: Final answer
    x = 899,109,652.39

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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.