Home / 209,968,280.80-314,952,421.20-133,346,298.40

Finding the Fourth Proportional to 209,968,280.80, 314,952,421.20 and 133,346,298.40

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Solution

The fourth proportional to 209,968,280.80, 314,952,421.20 and 133,346,298.40 is: 200,019,447.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,968,280.80 : 314,952,421.20 = 133,346,298.40 : x
  2. Step 2: Convert to fraction form
    209,968,280.80/314,952,421.20 = 133,346,298.40/x
  3. Step 3: Cross multiply
    209,968,280.80x = 314,952,421.20 × 133,346,298.40
  4. Step 4: Simplify right side
    209,968,280.80x = 41,997,739,539,137,688
  5. Step 5: Solve for x
    x = 41,997,739,539,137,688/209,968,280.80
  6. Step 6: Final answer
    x = 200,019,447.60

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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.