Home / 65,440,289.12-90,308,230.80-36,072,756.32

Finding the Fourth Proportional to 65,440,289.12, 90,308,230.80 and 36,072,756.32

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Solution

The fourth proportional to 65,440,289.12, 90,308,230.80 and 36,072,756.32 is: 49,780,752.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,440,289.12 : 90,308,230.80 = 36,072,756.32 : x
  2. Step 2: Convert to fraction form
    65,440,289.12/90,308,230.80 = 36,072,756.32/x
  3. Step 3: Cross multiply
    65,440,289.12x = 90,308,230.80 × 36,072,756.32
  4. Step 4: Simplify right side
    65,440,289.12x = 3,257,666,803,338,718.50
  5. Step 5: Solve for x
    x = 3,257,666,803,338,718.50/65,440,289.12
  6. Step 6: Final answer
    x = 49,780,752.00

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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.