Home / 15,243,653,700.17-21,036,809,828.27-9,140,999,830.77

Finding the Fourth Proportional to 15,243,653,700.17, 21,036,809,828.27 and 9,140,999,830.77

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Solution

The fourth proportional to 15,243,653,700.17, 21,036,809,828.27 and 9,140,999,830.77 is: 12,614,920,206.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,243,653,700.17 : 21,036,809,828.27 = 9,140,999,830.77 : x
  2. Step 2: Convert to fraction form
    15,243,653,700.17/21,036,809,828.27 = 9,140,999,830.77/x
  3. Step 3: Cross multiply
    15,243,653,700.17x = 21,036,809,828.27 × 9,140,999,830.77
  4. Step 4: Simplify right side
    15,243,653,700.17x = 192,297,475,080,111,030,272
  5. Step 5: Solve for x
    x = 192,297,475,080,111,030,272/15,243,653,700.17
  6. Step 6: Final answer
    x = 12,614,920,206.30

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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.