Home / 579,466,337.40-869,199,506.10-191,349,070.20

Finding the Fourth Proportional to 579,466,337.40, 869,199,506.10 and 191,349,070.20

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Solution

The fourth proportional to 579,466,337.40, 869,199,506.10 and 191,349,070.20 is: 287,023,605.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,466,337.40 : 869,199,506.10 = 191,349,070.20 : x
  2. Step 2: Convert to fraction form
    579,466,337.40/869,199,506.10 = 191,349,070.20/x
  3. Step 3: Cross multiply
    579,466,337.40x = 869,199,506.10 × 191,349,070.20
  4. Step 4: Simplify right side
    579,466,337.40x = 166,320,517,310,534,208
  5. Step 5: Solve for x
    x = 166,320,517,310,534,208/579,466,337.40
  6. Step 6: Final answer
    x = 287,023,605.30

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Double scale
Find fourth proportional to 579,466,338.40, 869,199,507.60 and 191,349,071.20
Similar ratio
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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.