Home / 402,829,444,175.78-556,155,559,122.23-256,424,542,871.84

Finding the Fourth Proportional to 402,829,444,175.78, 556,155,559,122.23 and 256,424,542,871.84

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Solution

The fourth proportional to 402,829,444,175.78, 556,155,559,122.23 and 256,424,542,871.84 is: 354,025,598,365.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,829,444,175.78 : 556,155,559,122.23 = 256,424,542,871.84 : x
  2. Step 2: Convert to fraction form
    402,829,444,175.78/556,155,559,122.23 = 256,424,542,871.84/x
  3. Step 3: Cross multiply
    402,829,444,175.78x = 556,155,559,122.23 × 256,424,542,871.84
  4. Step 4: Simplify right side
    402,829,444,175.78x = 142,611,935,013,550,413,578,240
  5. Step 5: Solve for x
    x = 142,611,935,013,550,413,578,240/402,829,444,175.78
  6. Step 6: Final answer
    x = 354,025,598,365.45

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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.