Home / 12,780,256,079.57-17,636,415,074.45-7,141,518,266.09

Finding the Fourth Proportional to 12,780,256,079.57, 17,636,415,074.45 and 7,141,518,266.09

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Solution

The fourth proportional to 12,780,256,079.57, 17,636,415,074.45 and 7,141,518,266.09 is: 9,855,106,158.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,780,256,079.57 : 17,636,415,074.45 = 7,141,518,266.09 : x
  2. Step 2: Convert to fraction form
    12,780,256,079.57/17,636,415,074.45 = 7,141,518,266.09/x
  3. Step 3: Cross multiply
    12,780,256,079.57x = 17,636,415,074.45 × 7,141,518,266.09
  4. Step 4: Simplify right side
    12,780,256,079.57x = 125,950,780,402,405,818,368
  5. Step 5: Solve for x
    x = 125,950,780,402,405,818,368/12,780,256,079.57
  6. Step 6: Final answer
    x = 9,855,106,158.93

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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.