Home / 139,968,128.40-209,952,192.60-105,955,904.40

Finding the Fourth Proportional to 139,968,128.40, 209,952,192.60 and 105,955,904.40

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Solution

The fourth proportional to 139,968,128.40, 209,952,192.60 and 105,955,904.40 is: 158,933,856.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,128.40 : 209,952,192.60 = 105,955,904.40 : x
  2. Step 2: Convert to fraction form
    139,968,128.40/209,952,192.60 = 105,955,904.40/x
  3. Step 3: Cross multiply
    139,968,128.40x = 209,952,192.60 × 105,955,904.40
  4. Step 4: Simplify right side
    139,968,128.40x = 22,245,674,447,695,988
  5. Step 5: Solve for x
    x = 22,245,674,447,695,988/139,968,128.40
  6. Step 6: Final answer
    x = 158,933,856.60

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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.