Home / 85,148,172.12-127,635,005.10-64,634,465.70

Finding the Fourth Proportional to 85,148,172.12, 127,635,005.10 and 64,634,465.70

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Solution

The fourth proportional to 85,148,172.12, 127,635,005.10 and 64,634,465.70 is: 96,885,466.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,148,172.12 : 127,635,005.10 = 64,634,465.70 : x
  2. Step 2: Convert to fraction form
    85,148,172.12/127,635,005.10 = 64,634,465.70/x
  3. Step 3: Cross multiply
    85,148,172.12x = 127,635,005.10 × 64,634,465.70
  4. Step 4: Simplify right side
    85,148,172.12x = 8,249,620,359,255,275
  5. Step 5: Solve for x
    x = 8,249,620,359,255,275/85,148,172.12
  6. Step 6: Final answer
    x = 96,885,466.29

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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.