Home / 1,621,047,279.15-2,237,047,157.84-878,491,341.90

Finding the Fourth Proportional to 1,621,047,279.15, 2,237,047,157.84 and 878,491,341.90

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Solution

The fourth proportional to 1,621,047,279.15, 2,237,047,157.84 and 878,491,341.90 is: 1,212,319,088.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621,047,279.15 : 2,237,047,157.84 = 878,491,341.90 : x
  2. Step 2: Convert to fraction form
    1,621,047,279.15/2,237,047,157.84 = 878,491,341.90/x
  3. Step 3: Cross multiply
    1,621,047,279.15x = 2,237,047,157.84 × 878,491,341.90
  4. Step 4: Simplify right side
    1,621,047,279.15x = 1,965,226,559,580,050,176
  5. Step 5: Solve for x
    x = 1,965,226,559,580,050,176/1,621,047,279.15
  6. Step 6: Final answer
    x = 1,212,319,088.32

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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.