Home / 30,700,837.80-45,990,603.90-15,565,631.40

Finding the Fourth Proportional to 30,700,837.80, 45,990,603.90 and 15,565,631.40

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Solution

The fourth proportional to 30,700,837.80, 45,990,603.90 and 15,565,631.40 is: 23,317,695.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,700,837.80 : 45,990,603.90 = 15,565,631.40 : x
  2. Step 2: Convert to fraction form
    30,700,837.80/45,990,603.90 = 15,565,631.40/x
  3. Step 3: Cross multiply
    30,700,837.80x = 45,990,603.90 × 15,565,631.40
  4. Step 4: Simplify right side
    30,700,837.80x = 715,872,788,170,802.50
  5. Step 5: Solve for x
    x = 715,872,788,170,802.50/30,700,837.80
  6. Step 6: Final answer
    x = 23,317,695.52

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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.