Home / 28,133,458,286.40-38,824,248,829.68-15,447,015,668.16

Finding the Fourth Proportional to 28,133,458,286.40, 38,824,248,829.68 and 15,447,015,668.16

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Solution

The fourth proportional to 28,133,458,286.40, 38,824,248,829.68 and 15,447,015,668.16 is: 21,316,923,567.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,133,458,286.40 : 38,824,248,829.68 = 15,447,015,668.16 : x
  2. Step 2: Convert to fraction form
    28,133,458,286.40/38,824,248,829.68 = 15,447,015,668.16/x
  3. Step 3: Cross multiply
    28,133,458,286.40x = 38,824,248,829.68 × 15,447,015,668.16
  4. Step 4: Simplify right side
    28,133,458,286.40x = 599,718,779,976,609,562,624
  5. Step 5: Solve for x
    x = 599,718,779,976,609,562,624/28,133,458,286.40
  6. Step 6: Final answer
    x = 21,316,923,567.36

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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.