Home / 85,536,038.40-128,304,057.60-51,523,814.40

Finding the Fourth Proportional to 85,536,038.40, 128,304,057.60 and 51,523,814.40

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Solution

The fourth proportional to 85,536,038.40, 128,304,057.60 and 51,523,814.40 is: 77,285,721.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,536,038.40 : 128,304,057.60 = 51,523,814.40 : x
  2. Step 2: Convert to fraction form
    85,536,038.40/128,304,057.60 = 51,523,814.40/x
  3. Step 3: Cross multiply
    85,536,038.40x = 128,304,057.60 × 51,523,814.40
  4. Step 4: Simplify right side
    85,536,038.40x = 6,610,714,450,549,309
  5. Step 5: Solve for x
    x = 6,610,714,450,549,309/85,536,038.40
  6. Step 6: Final answer
    x = 77,285,721.60

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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.