Home / 790,565,774.82-1,090,980,747.57-438,194,705.49

Finding the Fourth Proportional to 790,565,774.82, 1,090,980,747.57 and 438,194,705.49

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Solution

The fourth proportional to 790,565,774.82, 1,090,980,747.57 and 438,194,705.49 is: 604,708,681.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,565,774.82 : 1,090,980,747.57 = 438,194,705.49 : x
  2. Step 2: Convert to fraction form
    790,565,774.82/1,090,980,747.57 = 438,194,705.49/x
  3. Step 3: Cross multiply
    790,565,774.82x = 1,090,980,747.57 × 438,194,705.49
  4. Step 4: Simplify right side
    790,565,774.82x = 478,061,987,376,696,192
  5. Step 5: Solve for x
    x = 478,061,987,376,696,192/790,565,774.82
  6. Step 6: Final answer
    x = 604,708,681.56

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Double scale
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1.5x scale

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.