Home / 287,575,271.10-431,362,906.65-219,550,823.10

Finding the Fourth Proportional to 287,575,271.10, 431,362,906.65 and 219,550,823.10

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Solution

The fourth proportional to 287,575,271.10, 431,362,906.65 and 219,550,823.10 is: 329,326,234.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,575,271.10 : 431,362,906.65 = 219,550,823.10 : x
  2. Step 2: Convert to fraction form
    287,575,271.10/431,362,906.65 = 219,550,823.10/x
  3. Step 3: Cross multiply
    287,575,271.10x = 431,362,906.65 × 219,550,823.10
  4. Step 4: Simplify right side
    287,575,271.10x = 94,706,081,209,815,952
  5. Step 5: Solve for x
    x = 94,706,081,209,815,952/287,575,271.10
  6. Step 6: Final answer
    x = 329,326,234.65

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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.