Home / 142,064,812,203.32-196,024,523,438.04-81,069,330,415.16

Finding the Fourth Proportional to 142,064,812,203.32, 196,024,523,438.04 and 81,069,330,415.16

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Solution

The fourth proportional to 142,064,812,203.32, 196,024,523,438.04 and 81,069,330,415.16 is: 111,861,456,849.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,064,812,203.32 : 196,024,523,438.04 = 81,069,330,415.16 : x
  2. Step 2: Convert to fraction form
    142,064,812,203.32/196,024,523,438.04 = 81,069,330,415.16/x
  3. Step 3: Cross multiply
    142,064,812,203.32x = 196,024,523,438.04 × 81,069,330,415.16
  4. Step 4: Simplify right side
    142,064,812,203.32x = 15,891,576,860,072,740,913,152
  5. Step 5: Solve for x
    x = 15,891,576,860,072,740,913,152/142,064,812,203.32
  6. Step 6: Final answer
    x = 111,861,456,849.21

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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.