Home / 191,808,021.20-287,712,031.80-173,294,920.40

Finding the Fourth Proportional to 191,808,021.20, 287,712,031.80 and 173,294,920.40

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Solution

The fourth proportional to 191,808,021.20, 287,712,031.80 and 173,294,920.40 is: 259,942,380.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,808,021.20 : 287,712,031.80 = 173,294,920.40 : x
  2. Step 2: Convert to fraction form
    191,808,021.20/287,712,031.80 = 173,294,920.40/x
  3. Step 3: Cross multiply
    191,808,021.20x = 287,712,031.80 × 173,294,920.40
  4. Step 4: Simplify right side
    191,808,021.20x = 49,859,033,648,903,272
  5. Step 5: Solve for x
    x = 49,859,033,648,903,272/191,808,021.20
  6. Step 6: Final answer
    x = 259,942,380.60

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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.