Home / 77,705,127.12-107,230,266.54-42,897,071.64

Finding the Fourth Proportional to 77,705,127.12, 107,230,266.54 and 42,897,071.64

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Solution

The fourth proportional to 77,705,127.12, 107,230,266.54 and 42,897,071.64 is: 59,196,408.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,705,127.12 : 107,230,266.54 = 42,897,071.64 : x
  2. Step 2: Convert to fraction form
    77,705,127.12/107,230,266.54 = 42,897,071.64/x
  3. Step 3: Cross multiply
    77,705,127.12x = 107,230,266.54 × 42,897,071.64
  4. Step 4: Simplify right side
    77,705,127.12x = 4,599,864,425,742,675
  5. Step 5: Solve for x
    x = 4,599,864,425,742,675/77,705,127.12
  6. Step 6: Final answer
    x = 59,196,408.22

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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.