Home / 10,128,973,601.50-13,978,065,641.86-5,612,928,089.56

Finding the Fourth Proportional to 10,128,973,601.50, 13,978,065,641.86 and 5,612,928,089.56

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Solution

The fourth proportional to 10,128,973,601.50, 13,978,065,641.86 and 5,612,928,089.56 is: 7,745,886,243.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,128,973,601.50 : 13,978,065,641.86 = 5,612,928,089.56 : x
  2. Step 2: Convert to fraction form
    10,128,973,601.50/13,978,065,641.86 = 5,612,928,089.56/x
  3. Step 3: Cross multiply
    10,128,973,601.50x = 13,978,065,641.86 × 5,612,928,089.56
  4. Step 4: Simplify right side
    10,128,973,601.50x = 78,457,877,278,842,421,248
  5. Step 5: Solve for x
    x = 78,457,877,278,842,421,248/10,128,973,601.50
  6. Step 6: Final answer
    x = 7,745,886,243.32

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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.