Home / 139,968,127.05-209,952,190.58-103,688,421.45

Finding the Fourth Proportional to 139,968,127.05, 209,952,190.58 and 103,688,421.45

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Solution

The fourth proportional to 139,968,127.05, 209,952,190.58 and 103,688,421.45 is: 155,532,632.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,127.05 : 209,952,190.58 = 103,688,421.45 : x
  2. Step 2: Convert to fraction form
    139,968,127.05/209,952,190.58 = 103,688,421.45/x
  3. Step 3: Cross multiply
    139,968,127.05x = 209,952,190.58 × 103,688,421.45
  4. Step 4: Simplify right side
    139,968,127.05x = 21,769,611,221,209,760
  5. Step 5: Solve for x
    x = 21,769,611,221,209,760/139,968,127.05
  6. Step 6: Final answer
    x = 155,532,632.18

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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.