Home / 280,943,838,993.72-387,702,784,746.12-152,485,314,094.84

Finding the Fourth Proportional to 280,943,838,993.72, 387,702,784,746.12 and 152,485,314,094.84

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Solution

The fourth proportional to 280,943,838,993.72, 387,702,784,746.12 and 152,485,314,094.84 is: 210,429,889,187.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,943,838,993.72 : 387,702,784,746.12 = 152,485,314,094.84 : x
  2. Step 2: Convert to fraction form
    280,943,838,993.72/387,702,784,746.12 = 152,485,314,094.84/x
  3. Step 3: Cross multiply
    280,943,838,993.72x = 387,702,784,746.12 × 152,485,314,094.84
  4. Step 4: Simplify right side
    280,943,838,993.72x = 59,118,980,907,456,245,268,480
  5. Step 5: Solve for x
    x = 59,118,980,907,456,245,268,480/280,943,838,993.72
  6. Step 6: Final answer
    x = 210,429,889,187.85

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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.