Home / 579,492,723.70-869,239,085.55-349,343,341.30

Finding the Fourth Proportional to 579,492,723.70, 869,239,085.55 and 349,343,341.30

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Solution

The fourth proportional to 579,492,723.70, 869,239,085.55 and 349,343,341.30 is: 524,015,011.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,492,723.70 : 869,239,085.55 = 349,343,341.30 : x
  2. Step 2: Convert to fraction form
    579,492,723.70/869,239,085.55 = 349,343,341.30/x
  3. Step 3: Cross multiply
    579,492,723.70x = 869,239,085.55 × 349,343,341.30
  4. Step 4: Simplify right side
    579,492,723.70x = 303,662,886,534,593,536
  5. Step 5: Solve for x
    x = 303,662,886,534,593,536/579,492,723.70
  6. Step 6: Final answer
    x = 524,015,011.95

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Double scale
Find fourth proportional to 579,492,724.70, 869,239,087.05 and 349,343,342.30
Similar ratio
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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.