Home / 245,853,005.80-368,779,508.70-123,408,999.40

Finding the Fourth Proportional to 245,853,005.80, 368,779,508.70 and 123,408,999.40

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Solution

The fourth proportional to 245,853,005.80, 368,779,508.70 and 123,408,999.40 is: 185,113,499.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,853,005.80 : 368,779,508.70 = 123,408,999.40 : x
  2. Step 2: Convert to fraction form
    245,853,005.80/368,779,508.70 = 123,408,999.40/x
  3. Step 3: Cross multiply
    245,853,005.80x = 368,779,508.70 × 123,408,999.40
  4. Step 4: Simplify right side
    245,853,005.80x = 45,510,710,167,890,592
  5. Step 5: Solve for x
    x = 45,510,710,167,890,592/245,853,005.80
  6. Step 6: Final answer
    x = 185,113,499.10

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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.