Home / 624,342,639.60-935,506,189.80-521,550,140.40

Finding the Fourth Proportional to 624,342,639.60, 935,506,189.80 and 521,550,140.40

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Solution

The fourth proportional to 624,342,639.60, 935,506,189.80 and 521,550,140.40 is: 781,483,361.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,342,639.60 : 935,506,189.80 = 521,550,140.40 : x
  2. Step 2: Convert to fraction form
    624,342,639.60/935,506,189.80 = 521,550,140.40/x
  3. Step 3: Cross multiply
    624,342,639.60x = 935,506,189.80 × 521,550,140.40
  4. Step 4: Simplify right side
    624,342,639.60x = 487,913,384,635,259,008
  5. Step 5: Solve for x
    x = 487,913,384,635,259,008/624,342,639.60
  6. Step 6: Final answer
    x = 781,483,361.36

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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.