Home / 12,780,256,078.81-17,636,415,073.40-7,141,518,265.33

Finding the Fourth Proportional to 12,780,256,078.81, 17,636,415,073.40 and 7,141,518,265.33

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Solution

The fourth proportional to 12,780,256,078.81, 17,636,415,073.40 and 7,141,518,265.33 is: 9,855,106,157.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,780,256,078.81 : 17,636,415,073.40 = 7,141,518,265.33 : x
  2. Step 2: Convert to fraction form
    12,780,256,078.81/17,636,415,073.40 = 7,141,518,265.33/x
  3. Step 3: Cross multiply
    12,780,256,078.81x = 17,636,415,073.40 × 7,141,518,265.33
  4. Step 4: Simplify right side
    12,780,256,078.81x = 125,950,780,381,604,773,888
  5. Step 5: Solve for x
    x = 125,950,780,381,604,773,888/12,780,256,078.81
  6. Step 6: Final answer
    x = 9,855,106,157.89

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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.