Home / 85,824,130.40-128,636,662.80-34,672,565.60

Finding the Fourth Proportional to 85,824,130.40, 128,636,662.80 and 34,672,565.60

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Solution

The fourth proportional to 85,824,130.40, 128,636,662.80 and 34,672,565.60 is: 51,968,637.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,824,130.40 : 128,636,662.80 = 34,672,565.60 : x
  2. Step 2: Convert to fraction form
    85,824,130.40/128,636,662.80 = 34,672,565.60/x
  3. Step 3: Cross multiply
    85,824,130.40x = 128,636,662.80 × 34,672,565.60
  4. Step 4: Simplify right side
    85,824,130.40x = 4,460,163,129,498,080
  5. Step 5: Solve for x
    x = 4,460,163,129,498,080/85,824,130.40
  6. Step 6: Final answer
    x = 51,968,637.59

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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.