Home / 208,893,581.96-288,153,078.81-130,440,947.72

Finding the Fourth Proportional to 208,893,581.96, 288,153,078.81 and 130,440,947.72

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Solution

The fourth proportional to 208,893,581.96, 288,153,078.81 and 130,440,947.72 is: 179,933,535.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,893,581.96 : 288,153,078.81 = 130,440,947.72 : x
  2. Step 2: Convert to fraction form
    208,893,581.96/288,153,078.81 = 130,440,947.72/x
  3. Step 3: Cross multiply
    208,893,581.96x = 288,153,078.81 × 130,440,947.72
  4. Step 4: Simplify right side
    208,893,581.96x = 37,586,960,686,971,488
  5. Step 5: Solve for x
    x = 37,586,960,686,971,488/208,893,581.96
  6. Step 6: Final answer
    x = 179,933,535.22

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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.