Home / 869,793,634.62-1,200,315,411.75-478,653,058.62

Finding the Fourth Proportional to 869,793,634.62, 1,200,315,411.75 and 478,653,058.62

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Solution

The fourth proportional to 869,793,634.62, 1,200,315,411.75 and 478,653,058.62 is: 660,541,328.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,793,634.62 : 1,200,315,411.75 = 478,653,058.62 : x
  2. Step 2: Convert to fraction form
    869,793,634.62/1,200,315,411.75 = 478,653,058.62/x
  3. Step 3: Cross multiply
    869,793,634.62x = 1,200,315,411.75 × 478,653,058.62
  4. Step 4: Simplify right side
    869,793,634.62x = 574,534,643,142,862,208
  5. Step 5: Solve for x
    x = 574,534,643,142,862,208/869,793,634.62
  6. Step 6: Final answer
    x = 660,541,328.74

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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.