Home / 1,505,897,130.85-2,078,188,445.72-836,870,373.86

Finding the Fourth Proportional to 1,505,897,130.85, 2,078,188,445.72 and 836,870,373.86

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Solution

The fourth proportional to 1,505,897,130.85, 2,078,188,445.72 and 836,870,373.86 is: 1,154,909,127.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,505,897,130.85 : 2,078,188,445.72 = 836,870,373.86 : x
  2. Step 2: Convert to fraction form
    1,505,897,130.85/2,078,188,445.72 = 836,870,373.86/x
  3. Step 3: Cross multiply
    1,505,897,130.85x = 2,078,188,445.72 × 836,870,373.86
  4. Step 4: Simplify right side
    1,505,897,130.85x = 1,739,174,341,513,940,992
  5. Step 5: Solve for x
    x = 1,739,174,341,513,940,992/1,505,897,130.85
  6. Step 6: Final answer
    x = 1,154,909,127.51

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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.