Home / 213,354,017.80-320,031,026.70-209,952,795.40

Finding the Fourth Proportional to 213,354,017.80, 320,031,026.70 and 209,952,795.40

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Solution

The fourth proportional to 213,354,017.80, 320,031,026.70 and 209,952,795.40 is: 314,929,193.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,354,017.80 : 320,031,026.70 = 209,952,795.40 : x
  2. Step 2: Convert to fraction form
    213,354,017.80/320,031,026.70 = 209,952,795.40/x
  3. Step 3: Cross multiply
    213,354,017.80x = 320,031,026.70 × 209,952,795.40
  4. Step 4: Simplify right side
    213,354,017.80x = 67,191,408,670,397,040
  5. Step 5: Solve for x
    x = 67,191,408,670,397,040/213,354,017.80
  6. Step 6: Final answer
    x = 314,929,193.10

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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.