Home / 105,101,628.78-157,652,452.88-31,326,551.76

Finding the Fourth Proportional to 105,101,628.78, 157,652,452.88 and 31,326,551.76

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Solution

The fourth proportional to 105,101,628.78, 157,652,452.88 and 31,326,551.76 is: 46,989,830.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,101,628.78 : 157,652,452.88 = 31,326,551.76 : x
  2. Step 2: Convert to fraction form
    105,101,628.78/157,652,452.88 = 31,326,551.76/x
  3. Step 3: Cross multiply
    105,101,628.78x = 157,652,452.88 × 31,326,551.76
  4. Step 4: Simplify right side
    105,101,628.78x = 4,938,707,725,236,281
  5. Step 5: Solve for x
    x = 4,938,707,725,236,281/105,101,628.78
  6. Step 6: Final answer
    x = 46,989,830.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.