Home / 6,455,128.75-8,908,077.68-3,554,513.35

Finding the Fourth Proportional to 6,455,128.75, 8,908,077.68 and 3,554,513.35

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Solution

The fourth proportional to 6,455,128.75, 8,908,077.68 and 3,554,513.35 is: 4,905,228.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,455,128.75 : 8,908,077.68 = 3,554,513.35 : x
  2. Step 2: Convert to fraction form
    6,455,128.75/8,908,077.68 = 3,554,513.35/x
  3. Step 3: Cross multiply
    6,455,128.75x = 8,908,077.68 × 3,554,513.35
  4. Step 4: Simplify right side
    6,455,128.75x = 31,663,881,036,397.03
  5. Step 5: Solve for x
    x = 31,663,881,036,397.03/6,455,128.75
  6. Step 6: Final answer
    x = 4,905,228.43

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1.5x scale

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.