Home / 20,798,415,339.15-28,699,391,782.80-11,643,445,489.53

Finding the Fourth Proportional to 20,798,415,339.15, 28,699,391,782.80 and 11,643,445,489.53

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Solution

The fourth proportional to 20,798,415,339.15, 28,699,391,782.80 and 11,643,445,489.53 is: 16,066,599,226.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,798,415,339.15 : 28,699,391,782.80 = 11,643,445,489.53 : x
  2. Step 2: Convert to fraction form
    20,798,415,339.15/28,699,391,782.80 = 11,643,445,489.53/x
  3. Step 3: Cross multiply
    20,798,415,339.15x = 28,699,391,782.80 × 11,643,445,489.53
  4. Step 4: Simplify right side
    20,798,415,339.15x = 334,159,803,805,697,048,576
  5. Step 5: Solve for x
    x = 334,159,803,805,697,048,576/20,798,415,339.15
  6. Step 6: Final answer
    x = 16,066,599,226.75

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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.