Home / 7,779,007.20-11,668,510.80-4,191,780.45

Finding the Fourth Proportional to 7,779,007.20, 11,668,510.80 and 4,191,780.45

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Solution

The fourth proportional to 7,779,007.20, 11,668,510.80 and 4,191,780.45 is: 6,287,670.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,779,007.20 : 11,668,510.80 = 4,191,780.45 : x
  2. Step 2: Convert to fraction form
    7,779,007.20/11,668,510.80 = 4,191,780.45/x
  3. Step 3: Cross multiply
    7,779,007.20x = 11,668,510.80 × 4,191,780.45
  4. Step 4: Simplify right side
    7,779,007.20x = 48,911,835,452,053.87
  5. Step 5: Solve for x
    x = 48,911,835,452,053.87/7,779,007.20
  6. Step 6: Final answer
    x = 6,287,670.68

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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.