Home / 998,974,572,123.10-1,378,549,240,500.60-565,417,652,615.70

Finding the Fourth Proportional to 998,974,572,123.10, 1,378,549,240,500.60 and 565,417,652,615.70

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Solution

The fourth proportional to 998,974,572,123.10, 1,378,549,240,500.60 and 565,417,652,615.70 is: 780,256,172,008.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,974,572,123.10 : 1,378,549,240,500.60 = 565,417,652,615.70 : x
  2. Step 2: Convert to fraction form
    998,974,572,123.10/1,378,549,240,500.60 = 565,417,652,615.70/x
  3. Step 3: Cross multiply
    998,974,572,123.10x = 1,378,549,240,500.60 × 565,417,652,615.70
  4. Step 4: Simplify right side
    998,974,572,123.10x = 779,456,075,579,005,327,114,240
  5. Step 5: Solve for x
    x = 779,456,075,579,005,327,114,240/998,974,572,123.10
  6. Step 6: Final answer
    x = 780,256,172,008.91

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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.