Home / 523,655,916.44-722,611,865.76-288,693,734.36

Finding the Fourth Proportional to 523,655,916.44, 722,611,865.76 and 288,693,734.36

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Solution

The fourth proportional to 523,655,916.44, 722,611,865.76 and 288,693,734.36 is: 398,378,995.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,655,916.44 : 722,611,865.76 = 288,693,734.36 : x
  2. Step 2: Convert to fraction form
    523,655,916.44/722,611,865.76 = 288,693,734.36/x
  3. Step 3: Cross multiply
    523,655,916.44x = 722,611,865.76 × 288,693,734.36
  4. Step 4: Simplify right side
    523,655,916.44x = 208,613,518,019,101,440
  5. Step 5: Solve for x
    x = 208,613,518,019,101,440/523,655,916.44
  6. Step 6: Final answer
    x = 398,378,995.58

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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.