Home / 790,565,781.30-1,090,980,756.58-438,194,712

Finding the Fourth Proportional to 790,565,781.30, 1,090,980,756.58 and 438,194,712

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Solution

The fourth proportional to 790,565,781.30, 1,090,980,756.58 and 438,194,712 is: 604,708,690.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,565,781.30 : 1,090,980,756.58 = 438,194,712 : x
  2. Step 2: Convert to fraction form
    790,565,781.30/1,090,980,756.58 = 438,194,712/x
  3. Step 3: Cross multiply
    790,565,781.30x = 1,090,980,756.58 × 438,194,712
  4. Step 4: Simplify right side
    790,565,781.30x = 478,061,998,427,115,200
  5. Step 5: Solve for x
    x = 478,061,998,427,115,200/790,565,781.30
  6. Step 6: Final answer
    x = 604,708,690.58

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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.