Home / 139,968,139.20-209,952,208.80-96,319,118.40

Finding the Fourth Proportional to 139,968,139.20, 209,952,208.80 and 96,319,118.40

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Solution

The fourth proportional to 139,968,139.20, 209,952,208.80 and 96,319,118.40 is: 144,478,677.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,139.20 : 209,952,208.80 = 96,319,118.40 : x
  2. Step 2: Convert to fraction form
    139,968,139.20/209,952,208.80 = 96,319,118.40/x
  3. Step 3: Cross multiply
    139,968,139.20x = 209,952,208.80 × 96,319,118.40
  4. Step 4: Simplify right side
    139,968,139.20x = 20,222,411,657,748,724
  5. Step 5: Solve for x
    x = 20,222,411,657,748,724/139,968,139.20
  6. Step 6: Final answer
    x = 144,478,677.60

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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.