Home / 81,492,352.65-122,196,538.58-30,348,045.45

Finding the Fourth Proportional to 81,492,352.65, 122,196,538.58 and 30,348,045.45

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Solution

The fourth proportional to 81,492,352.65, 122,196,538.58 and 30,348,045.45 is: 45,506,430.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,492,352.65 : 122,196,538.58 = 30,348,045.45 : x
  2. Step 2: Convert to fraction form
    81,492,352.65/122,196,538.58 = 30,348,045.45/x
  3. Step 3: Cross multiply
    81,492,352.65x = 122,196,538.58 × 30,348,045.45
  4. Step 4: Simplify right side
    81,492,352.65x = 3,708,426,106,506,778
  5. Step 5: Solve for x
    x = 3,708,426,106,506,778/81,492,352.65
  6. Step 6: Final answer
    x = 45,506,430.80

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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.