Home / 28,366,848,034.20-42,550,272,051.30-12,887,506,978.20

Finding the Fourth Proportional to 28,366,848,034.20, 42,550,272,051.30 and 12,887,506,978.20

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Solution

The fourth proportional to 28,366,848,034.20, 42,550,272,051.30 and 12,887,506,978.20 is: 19,331,260,467.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,366,848,034.20 : 42,550,272,051.30 = 12,887,506,978.20 : x
  2. Step 2: Convert to fraction form
    28,366,848,034.20/42,550,272,051.30 = 12,887,506,978.20/x
  3. Step 3: Cross multiply
    28,366,848,034.20x = 42,550,272,051.30 × 12,887,506,978.20
  4. Step 4: Simplify right side
    28,366,848,034.20x = 548,366,927,985,437,245,440
  5. Step 5: Solve for x
    x = 548,366,927,985,437,245,440/28,366,848,034.20
  6. Step 6: Final answer
    x = 19,331,260,467.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.