Home / 99,778,709.40-149,556,089.70-56,668,565.40

Finding the Fourth Proportional to 99,778,709.40, 149,556,089.70 and 56,668,565.40

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Solution

The fourth proportional to 99,778,709.40, 149,556,089.70 and 56,668,565.40 is: 84,939,253.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,778,709.40 : 149,556,089.70 = 56,668,565.40 : x
  2. Step 2: Convert to fraction form
    99,778,709.40/149,556,089.70 = 56,668,565.40/x
  3. Step 3: Cross multiply
    99,778,709.40x = 149,556,089.70 × 56,668,565.40
  4. Step 4: Simplify right side
    99,778,709.40x = 8,475,129,050,132,715
  5. Step 5: Solve for x
    x = 8,475,129,050,132,715/99,778,709.40
  6. Step 6: Final answer
    x = 84,939,253.08

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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.