Home / 30,487,158.07-45,730,802.10-21,429,784.44

Finding the Fourth Proportional to 30,487,158.07, 45,730,802.10 and 21,429,784.44

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Solution

The fourth proportional to 30,487,158.07, 45,730,802.10 and 21,429,784.44 is: 32,144,722.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,487,158.07 : 45,730,802.10 = 21,429,784.44 : x
  2. Step 2: Convert to fraction form
    30,487,158.07/45,730,802.10 = 21,429,784.44/x
  3. Step 3: Cross multiply
    30,487,158.07x = 45,730,802.10 × 21,429,784.44
  4. Step 4: Simplify right side
    30,487,158.07x = 980,001,231,351,661
  5. Step 5: Solve for x
    x = 980,001,231,351,661/30,487,158.07
  6. Step 6: Final answer
    x = 32,144,722.35

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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.