Home / 30,359,981.95-45,539,937.54-9,889,668.49

Finding the Fourth Proportional to 30,359,981.95, 45,539,937.54 and 9,889,668.49

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Solution

The fourth proportional to 30,359,981.95, 45,539,937.54 and 9,889,668.49 is: 14,834,491.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,359,981.95 : 45,539,937.54 = 9,889,668.49 : x
  2. Step 2: Convert to fraction form
    30,359,981.95/45,539,937.54 = 9,889,668.49/x
  3. Step 3: Cross multiply
    30,359,981.95x = 45,539,937.54 × 9,889,668.49
  4. Step 4: Simplify right side
    30,359,981.95x = 450,374,885,154,006.62
  5. Step 5: Solve for x
    x = 450,374,885,154,006.62/30,359,981.95
  6. Step 6: Final answer
    x = 14,834,491.20

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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.