Home / 238,811,415.78-358,219,129.64-66,301,681.98

Finding the Fourth Proportional to 238,811,415.78, 358,219,129.64 and 66,301,681.98

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Solution

The fourth proportional to 238,811,415.78, 358,219,129.64 and 66,301,681.98 is: 99,453,079.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,811,415.78 : 358,219,129.64 = 66,301,681.98 : x
  2. Step 2: Convert to fraction form
    238,811,415.78/358,219,129.64 = 66,301,681.98/x
  3. Step 3: Cross multiply
    238,811,415.78x = 358,219,129.64 × 66,301,681.98
  4. Step 4: Simplify right side
    238,811,415.78x = 23,750,530,812,212,160
  5. Step 5: Solve for x
    x = 23,750,530,812,212,160/238,811,415.78
  6. Step 6: Final answer
    x = 99,453,079.89

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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.