Home / 30,803,656.95-42,495,699.68-18,573,719.67

Finding the Fourth Proportional to 30,803,656.95, 42,495,699.68 and 18,573,719.67

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Solution

The fourth proportional to 30,803,656.95, 42,495,699.68 and 18,573,719.67 is: 25,623,685.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,803,656.95 : 42,495,699.68 = 18,573,719.67 : x
  2. Step 2: Convert to fraction form
    30,803,656.95/42,495,699.68 = 18,573,719.67/x
  3. Step 3: Cross multiply
    30,803,656.95x = 42,495,699.68 × 18,573,719.67
  4. Step 4: Simplify right side
    30,803,656.95x = 789,303,212,943,960.12
  5. Step 5: Solve for x
    x = 789,303,212,943,960.12/30,803,656.95
  6. Step 6: Final answer
    x = 25,623,685.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.