Home / 142,765,200-197,017,156.98-77,575,104

Finding the Fourth Proportional to 142,765,200, 197,017,156.98 and 77,575,104

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Solution

The fourth proportional to 142,765,200, 197,017,156.98 and 77,575,104 is: 107,054,285.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,765,200 : 197,017,156.98 = 77,575,104 : x
  2. Step 2: Convert to fraction form
    142,765,200/197,017,156.98 = 77,575,104/x
  3. Step 3: Cross multiply
    142,765,200x = 197,017,156.98 × 77,575,104
  4. Step 4: Simplify right side
    142,765,200x = 15,283,626,442,507,826
  5. Step 5: Solve for x
    x = 15,283,626,442,507,826/142,765,200
  6. Step 6: Final answer
    x = 107,054,285.24

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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.