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Finding the Fourth Proportional to 302,931,985.20, 454,397,977.80 and 302,931,985.20

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Solution

The fourth proportional to 302,931,985.20, 454,397,977.80 and 302,931,985.20 is: 454,397,977.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,931,985.20 : 454,397,977.80 = 302,931,985.20 : x
  2. Step 2: Convert to fraction form
    302,931,985.20/454,397,977.80 = 302,931,985.20/x
  3. Step 3: Cross multiply
    302,931,985.20x = 454,397,977.80 × 302,931,985.20
  4. Step 4: Simplify right side
    302,931,985.20x = 137,651,681,485,819,520
  5. Step 5: Solve for x
    x = 137,651,681,485,819,520/302,931,985.20
  6. Step 6: Final answer
    x = 454,397,977.80

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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.