Home / 191,909,421.40-287,864,132.10-188,083,046.20

Finding the Fourth Proportional to 191,909,421.40, 287,864,132.10 and 188,083,046.20

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Solution

The fourth proportional to 191,909,421.40, 287,864,132.10 and 188,083,046.20 is: 282,124,569.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,909,421.40 : 287,864,132.10 = 188,083,046.20 : x
  2. Step 2: Convert to fraction form
    191,909,421.40/287,864,132.10 = 188,083,046.20/x
  3. Step 3: Cross multiply
    191,909,421.40x = 287,864,132.10 × 188,083,046.20
  4. Step 4: Simplify right side
    191,909,421.40x = 54,142,362,857,087,208
  5. Step 5: Solve for x
    x = 54,142,362,857,087,208/191,909,421.40
  6. Step 6: Final answer
    x = 282,124,569.30

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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.