Home / 30,831,428.47-42,543,938.58-17,076,948.07

Finding the Fourth Proportional to 30,831,428.47, 42,543,938.58 and 17,076,948.07

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Solution

The fourth proportional to 30,831,428.47, 42,543,938.58 and 17,076,948.07 is: 23,564,287.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,831,428.47 : 42,543,938.58 = 17,076,948.07 : x
  2. Step 2: Convert to fraction form
    30,831,428.47/42,543,938.58 = 17,076,948.07/x
  3. Step 3: Cross multiply
    30,831,428.47x = 42,543,938.58 × 17,076,948.07
  4. Step 4: Simplify right side
    30,831,428.47x = 726,520,629,733,301.12
  5. Step 5: Solve for x
    x = 726,520,629,733,301.12/30,831,428.47
  6. Step 6: Final answer
    x = 23,564,287.02

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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.