Home / 538,921,415.40-808,382,123.10-504,909,191.40

Finding the Fourth Proportional to 538,921,415.40, 808,382,123.10 and 504,909,191.40

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Solution

The fourth proportional to 538,921,415.40, 808,382,123.10 and 504,909,191.40 is: 757,363,787.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,921,415.40 : 808,382,123.10 = 504,909,191.40 : x
  2. Step 2: Convert to fraction form
    538,921,415.40/808,382,123.10 = 504,909,191.40/x
  3. Step 3: Cross multiply
    538,921,415.40x = 808,382,123.10 × 504,909,191.40
  4. Step 4: Simplify right side
    538,921,415.40x = 408,159,564,116,636,224
  5. Step 5: Solve for x
    x = 408,159,564,116,636,224/538,921,415.40
  6. Step 6: Final answer
    x = 757,363,787.10

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Double scale
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Similar ratio
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1.5x scale

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.