Home / 938,943,958.85-1,408,415,938.28-589,751,792.45

Finding the Fourth Proportional to 938,943,958.85, 1,408,415,938.28 and 589,751,792.45

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Solution

The fourth proportional to 938,943,958.85, 1,408,415,938.28 and 589,751,792.45 is: 884,627,688.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,943,958.85 : 1,408,415,938.28 = 589,751,792.45 : x
  2. Step 2: Convert to fraction form
    938,943,958.85/1,408,415,938.28 = 589,751,792.45/x
  3. Step 3: Cross multiply
    938,943,958.85x = 1,408,415,938.28 × 589,751,792.45
  4. Step 4: Simplify right side
    938,943,958.85x = 830,615,824,112,829,952
  5. Step 5: Solve for x
    x = 830,615,824,112,829,952/938,943,958.85
  6. Step 6: Final answer
    x = 884,627,688.68

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.