Home / 77,264,666.60-115,896,999.90-19,761,438.20

Finding the Fourth Proportional to 77,264,666.60, 115,896,999.90 and 19,761,438.20

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Solution

The fourth proportional to 77,264,666.60, 115,896,999.90 and 19,761,438.20 is: 29,642,157.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,264,666.60 : 115,896,999.90 = 19,761,438.20 : x
  2. Step 2: Convert to fraction form
    77,264,666.60/115,896,999.90 = 19,761,438.20/x
  3. Step 3: Cross multiply
    77,264,666.60x = 115,896,999.90 × 19,761,438.20
  4. Step 4: Simplify right side
    77,264,666.60x = 2,290,291,401,089,256
  5. Step 5: Solve for x
    x = 2,290,291,401,089,256/77,264,666.60
  6. Step 6: Final answer
    x = 29,642,157.30

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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.