Home / 72,070,362.85-99,455,871.50-39,030,343.51

Finding the Fourth Proportional to 72,070,362.85, 99,455,871.50 and 39,030,343.51

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Solution

The fourth proportional to 72,070,362.85, 99,455,871.50 and 39,030,343.51 is: 53,861,208.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,070,362.85 : 99,455,871.50 = 39,030,343.51 : x
  2. Step 2: Convert to fraction form
    72,070,362.85/99,455,871.50 = 39,030,343.51/x
  3. Step 3: Cross multiply
    72,070,362.85x = 99,455,871.50 × 39,030,343.51
  4. Step 4: Simplify right side
    72,070,362.85x = 3,881,796,828,536,267
  5. Step 5: Solve for x
    x = 3,881,796,828,536,267/72,070,362.85
  6. Step 6: Final answer
    x = 53,861,208.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.