Home / 72,579,643.20-109,031,666.40-60,635,707.20

Finding the Fourth Proportional to 72,579,643.20, 109,031,666.40 and 60,635,707.20

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Solution

The fourth proportional to 72,579,643.20, 109,031,666.40 and 60,635,707.20 is: 91,089,069.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,579,643.20 : 109,031,666.40 = 60,635,707.20 : x
  2. Step 2: Convert to fraction form
    72,579,643.20/109,031,666.40 = 60,635,707.20/x
  3. Step 3: Cross multiply
    72,579,643.20x = 109,031,666.40 × 60,635,707.20
  4. Step 4: Simplify right side
    72,579,643.20x = 6,611,212,199,358,479
  5. Step 5: Solve for x
    x = 6,611,212,199,358,479/72,579,643.20
  6. Step 6: Final answer
    x = 91,089,069.99

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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.