Home / 520,278,503.84-780,106,088.10-165,599,573.13

Finding the Fourth Proportional to 520,278,503.84, 780,106,088.10 and 165,599,573.13

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Solution

The fourth proportional to 520,278,503.84, 780,106,088.10 and 165,599,573.13 is: 248,300,158.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,278,503.84 : 780,106,088.10 = 165,599,573.13 : x
  2. Step 2: Convert to fraction form
    520,278,503.84/780,106,088.10 = 165,599,573.13/x
  3. Step 3: Cross multiply
    520,278,503.84x = 780,106,088.10 × 165,599,573.13
  4. Step 4: Simplify right side
    520,278,503.84x = 129,185,235,185,474,176
  5. Step 5: Solve for x
    x = 129,185,235,185,474,176/520,278,503.84
  6. Step 6: Final answer
    x = 248,300,158.92

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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.