Home / 139,968,235.20-209,952,352.80-99,153,566.40

Finding the Fourth Proportional to 139,968,235.20, 209,952,352.80 and 99,153,566.40

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Solution

The fourth proportional to 139,968,235.20, 209,952,352.80 and 99,153,566.40 is: 148,730,349.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,235.20 : 209,952,352.80 = 99,153,566.40 : x
  2. Step 2: Convert to fraction form
    139,968,235.20/209,952,352.80 = 99,153,566.40/x
  3. Step 3: Cross multiply
    139,968,235.20x = 209,952,352.80 × 99,153,566.40
  4. Step 4: Simplify right side
    139,968,235.20x = 20,817,524,554,191,028
  5. Step 5: Solve for x
    x = 20,817,524,554,191,028/139,968,235.20
  6. Step 6: Final answer
    x = 148,730,349.60

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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.