Home / 15,159,017,064.87-20,918,039,674.70-8,384,689,842.48

Finding the Fourth Proportional to 15,159,017,064.87, 20,918,039,674.70 and 8,384,689,842.48

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Solution

The fourth proportional to 15,159,017,064.87, 20,918,039,674.70 and 8,384,689,842.48 is: 11,570,095,477.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,159,017,064.87 : 20,918,039,674.70 = 8,384,689,842.48 : x
  2. Step 2: Convert to fraction form
    15,159,017,064.87/20,918,039,674.70 = 8,384,689,842.48/x
  3. Step 3: Cross multiply
    15,159,017,064.87x = 20,918,039,674.70 × 8,384,689,842.48
  4. Step 4: Simplify right side
    15,159,017,064.87x = 175,391,274,785,008,812,032
  5. Step 5: Solve for x
    x = 175,391,274,785,008,812,032/15,159,017,064.87
  6. Step 6: Final answer
    x = 11,570,095,477.46

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1.5x scale

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.