Home / 208,062,669.27-287,126,478.36-115,249,155.84

Finding the Fourth Proportional to 208,062,669.27, 287,126,478.36 and 115,249,155.84

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Solution

The fourth proportional to 208,062,669.27, 287,126,478.36 and 115,249,155.84 is: 159,043,832.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,062,669.27 : 287,126,478.36 = 115,249,155.84 : x
  2. Step 2: Convert to fraction form
    208,062,669.27/287,126,478.36 = 115,249,155.84/x
  3. Step 3: Cross multiply
    208,062,669.27x = 287,126,478.36 × 115,249,155.84
  4. Step 4: Simplify right side
    208,062,669.27x = 33,091,084,250,302,032
  5. Step 5: Solve for x
    x = 33,091,084,250,302,032/208,062,669.27
  6. Step 6: Final answer
    x = 159,043,832.16

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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.