Home / 913,323,378.14-1,260,386,261.47-495,635,663.43

Finding the Fourth Proportional to 913,323,378.14, 1,260,386,261.47 and 495,635,663.43

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Solution

The fourth proportional to 913,323,378.14, 1,260,386,261.47 and 495,635,663.43 is: 683,977,215.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,323,378.14 : 1,260,386,261.47 = 495,635,663.43 : x
  2. Step 2: Convert to fraction form
    913,323,378.14/1,260,386,261.47 = 495,635,663.43/x
  3. Step 3: Cross multiply
    913,323,378.14x = 1,260,386,261.47 × 495,635,663.43
  4. Step 4: Simplify right side
    913,323,378.14x = 624,692,380,883,089,152
  5. Step 5: Solve for x
    x = 624,692,380,883,089,152/913,323,378.14
  6. Step 6: Final answer
    x = 683,977,215.34

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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.