Home / 287,864,135.40-431,796,203.10-236,208,070.20

Finding the Fourth Proportional to 287,864,135.40, 431,796,203.10 and 236,208,070.20

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Solution

The fourth proportional to 287,864,135.40, 431,796,203.10 and 236,208,070.20 is: 354,312,105.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,864,135.40 : 431,796,203.10 = 236,208,070.20 : x
  2. Step 2: Convert to fraction form
    287,864,135.40/431,796,203.10 = 236,208,070.20/x
  3. Step 3: Cross multiply
    287,864,135.40x = 431,796,203.10 × 236,208,070.20
  4. Step 4: Simplify right side
    287,864,135.40x = 101,993,747,853,938,256
  5. Step 5: Solve for x
    x = 101,993,747,853,938,256/287,864,135.40
  6. Step 6: Final answer
    x = 354,312,105.30

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1.5x scale

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.