Home / 99,642,407.40-149,463,611.10-98,634,637.80

Finding the Fourth Proportional to 99,642,407.40, 149,463,611.10 and 98,634,637.80

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Solution

The fourth proportional to 99,642,407.40, 149,463,611.10 and 98,634,637.80 is: 147,951,956.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,642,407.40 : 149,463,611.10 = 98,634,637.80 : x
  2. Step 2: Convert to fraction form
    99,642,407.40/149,463,611.10 = 98,634,637.80/x
  3. Step 3: Cross multiply
    99,642,407.40x = 149,463,611.10 × 98,634,637.80
  4. Step 4: Simplify right side
    99,642,407.40x = 14,742,289,145,128,558
  5. Step 5: Solve for x
    x = 14,742,289,145,128,558/99,642,407.40
  6. Step 6: Final answer
    x = 147,951,956.70

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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.