Home / 74,897,681.80-112,346,522.70-66,238,328.20

Finding the Fourth Proportional to 74,897,681.80, 112,346,522.70 and 66,238,328.20

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Solution

The fourth proportional to 74,897,681.80, 112,346,522.70 and 66,238,328.20 is: 99,357,492.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,897,681.80 : 112,346,522.70 = 66,238,328.20 : x
  2. Step 2: Convert to fraction form
    74,897,681.80/112,346,522.70 = 66,238,328.20/x
  3. Step 3: Cross multiply
    74,897,681.80x = 112,346,522.70 × 66,238,328.20
  4. Step 4: Simplify right side
    74,897,681.80x = 7,441,645,842,731,351
  5. Step 5: Solve for x
    x = 7,441,645,842,731,351/74,897,681.80
  6. Step 6: Final answer
    x = 99,357,492.30

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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.