Home / 72,406,095.30-108,598,645.35-21,282,783.30

Finding the Fourth Proportional to 72,406,095.30, 108,598,645.35 and 21,282,783.30

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Solution

The fourth proportional to 72,406,095.30, 108,598,645.35 and 21,282,783.30 is: 31,921,089.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,406,095.30 : 108,598,645.35 = 21,282,783.30 : x
  2. Step 2: Convert to fraction form
    72,406,095.30/108,598,645.35 = 21,282,783.30/x
  3. Step 3: Cross multiply
    72,406,095.30x = 108,598,645.35 × 21,282,783.30
  4. Step 4: Simplify right side
    72,406,095.30x = 2,311,281,435,657,602.50
  5. Step 5: Solve for x
    x = 2,311,281,435,657,602.50/72,406,095.30
  6. Step 6: Final answer
    x = 31,921,089.32

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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.