Home / 209,618,130.40-314,190,999.60-100,495,578.40

Finding the Fourth Proportional to 209,618,130.40, 314,190,999.60 and 100,495,578.40

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Solution

The fourth proportional to 209,618,130.40, 314,190,999.60 and 100,495,578.40 is: 150,630,130.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,618,130.40 : 314,190,999.60 = 100,495,578.40 : x
  2. Step 2: Convert to fraction form
    209,618,130.40/314,190,999.60 = 100,495,578.40/x
  3. Step 3: Cross multiply
    209,618,130.40x = 314,190,999.60 × 100,495,578.40
  4. Step 4: Simplify right side
    209,618,130.40x = 31,574,806,232,876,172
  5. Step 5: Solve for x
    x = 31,574,806,232,876,172/209,618,130.40
  6. Step 6: Final answer
    x = 150,630,130.00

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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.