Home / 559,777,528.82-772,528,539.57-312,258,378.74

Finding the Fourth Proportional to 559,777,528.82, 772,528,539.57 and 312,258,378.74

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Solution

The fourth proportional to 559,777,528.82, 772,528,539.57 and 312,258,378.74 is: 430,936,393.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,777,528.82 : 772,528,539.57 = 312,258,378.74 : x
  2. Step 2: Convert to fraction form
    559,777,528.82/772,528,539.57 = 312,258,378.74/x
  3. Step 3: Cross multiply
    559,777,528.82x = 772,528,539.57 × 312,258,378.74
  4. Step 4: Simplify right side
    559,777,528.82x = 241,228,509,296,508,160
  5. Step 5: Solve for x
    x = 241,228,509,296,508,160/559,777,528.82
  6. Step 6: Final answer
    x = 430,936,393.26

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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.