Home / 151,257,428.97-208,831,798.47-123,446,580.15

Finding the Fourth Proportional to 151,257,428.97, 208,831,798.47 and 123,446,580.15

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Solution

The fourth proportional to 151,257,428.97, 208,831,798.47 and 123,446,580.15 is: 170,435,075.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,257,428.97 : 208,831,798.47 = 123,446,580.15 : x
  2. Step 2: Convert to fraction form
    151,257,428.97/208,831,798.47 = 123,446,580.15/x
  3. Step 3: Cross multiply
    151,257,428.97x = 208,831,798.47 × 123,446,580.15
  4. Step 4: Simplify right side
    151,257,428.97x = 25,779,571,347,695,504
  5. Step 5: Solve for x
    x = 25,779,571,347,695,504/151,257,428.97
  6. Step 6: Final answer
    x = 170,435,075.64

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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.