Home / 210,581,709,157.94-315,861,438,892.09-69,072,490,716.98

Finding the Fourth Proportional to 210,581,709,157.94, 315,861,438,892.09 and 69,072,490,716.98

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Solution

The fourth proportional to 210,581,709,157.94, 315,861,438,892.09 and 69,072,490,716.98 is: 103,605,087,037.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,581,709,157.94 : 315,861,438,892.09 = 69,072,490,716.98 : x
  2. Step 2: Convert to fraction form
    210,581,709,157.94/315,861,438,892.09 = 69,072,490,716.98/x
  3. Step 3: Cross multiply
    210,581,709,157.94x = 315,861,438,892.09 × 69,072,490,716.98
  4. Step 4: Simplify right side
    210,581,709,157.94x = 21,817,336,305,725,833,478,144
  5. Step 5: Solve for x
    x = 21,817,336,305,725,833,478,144/210,581,709,157.94
  6. Step 6: Final answer
    x = 103,605,087,037.08

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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.