Home / 217,411,186-299,928,574.56-129,255,162.72

Finding the Fourth Proportional to 217,411,186, 299,928,574.56 and 129,255,162.72

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Solution

The fourth proportional to 217,411,186, 299,928,574.56 and 129,255,162.72 is: 178,313,349.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,411,186 : 299,928,574.56 = 129,255,162.72 : x
  2. Step 2: Convert to fraction form
    217,411,186/299,928,574.56 = 129,255,162.72/x
  3. Step 3: Cross multiply
    217,411,186x = 299,928,574.56 × 129,255,162.72
  4. Step 4: Simplify right side
    217,411,186x = 38,767,316,709,130,456
  5. Step 5: Solve for x
    x = 38,767,316,709,130,456/217,411,186
  6. Step 6: Final answer
    x = 178,313,349.11

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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.