Home / 97,788,020.80-146,838,703.20-77,759,809.60

Finding the Fourth Proportional to 97,788,020.80, 146,838,703.20 and 77,759,809.60

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Solution

The fourth proportional to 97,788,020.80, 146,838,703.20 and 77,759,809.60 is: 116,764,298.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,788,020.80 : 146,838,703.20 = 77,759,809.60 : x
  2. Step 2: Convert to fraction form
    97,788,020.80/146,838,703.20 = 77,759,809.60/x
  3. Step 3: Cross multiply
    97,788,020.80x = 146,838,703.20 × 77,759,809.60
  4. Step 4: Simplify right side
    97,788,020.80x = 11,418,149,602,742,908
  5. Step 5: Solve for x
    x = 11,418,149,602,742,908/97,788,020.80
  6. Step 6: Final answer
    x = 116,764,298.01

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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.