Home / 1,505,899,175.16-2,078,191,269.90-836,872,421.88

Finding the Fourth Proportional to 1,505,899,175.16, 2,078,191,269.90 and 836,872,421.88

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Solution

The fourth proportional to 1,505,899,175.16, 2,078,191,269.90 and 836,872,421.88 is: 1,154,911,955.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,505,899,175.16 : 2,078,191,269.90 = 836,872,421.88 : x
  2. Step 2: Convert to fraction form
    1,505,899,175.16/2,078,191,269.90 = 836,872,421.88/x
  3. Step 3: Cross multiply
    1,505,899,175.16x = 2,078,191,269.90 × 836,872,421.88
  4. Step 4: Simplify right side
    1,505,899,175.16x = 1,739,180,961,171,085,824
  5. Step 5: Solve for x
    x = 1,739,180,961,171,085,824/1,505,899,175.16
  6. Step 6: Final answer
    x = 1,154,911,955.50

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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.