Home / 99,447,509.80-148,919,322.30-79,292,117.80

Finding the Fourth Proportional to 99,447,509.80, 148,919,322.30 and 79,292,117.80

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Solution

The fourth proportional to 99,447,509.80, 148,919,322.30 and 79,292,117.80 is: 118,737,296.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,447,509.80 : 148,919,322.30 = 79,292,117.80 : x
  2. Step 2: Convert to fraction form
    99,447,509.80/148,919,322.30 = 79,292,117.80/x
  3. Step 3: Cross multiply
    99,447,509.80x = 148,919,322.30 × 79,292,117.80
  4. Step 4: Simplify right side
    99,447,509.80x = 11,808,128,446,507,768
  5. Step 5: Solve for x
    x = 11,808,128,446,507,768/99,447,509.80
  6. Step 6: Final answer
    x = 118,737,296.39

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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.