Home / 28,989,679.20-43,484,518.80-19,434,530.40

Finding the Fourth Proportional to 28,989,679.20, 43,484,518.80 and 19,434,530.40

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Solution

The fourth proportional to 28,989,679.20, 43,484,518.80 and 19,434,530.40 is: 29,151,795.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,989,679.20 : 43,484,518.80 = 19,434,530.40 : x
  2. Step 2: Convert to fraction form
    28,989,679.20/43,484,518.80 = 19,434,530.40/x
  3. Step 3: Cross multiply
    28,989,679.20x = 43,484,518.80 × 19,434,530.40
  4. Step 4: Simplify right side
    28,989,679.20x = 845,101,202,547,971.38
  5. Step 5: Solve for x
    x = 845,101,202,547,971.38/28,989,679.20
  6. Step 6: Final answer
    x = 29,151,795.60

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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.