Home / 52,007,468.40-78,020,533.80-21,718,393.20

Finding the Fourth Proportional to 52,007,468.40, 78,020,533.80 and 21,718,393.20

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Solution

The fourth proportional to 52,007,468.40, 78,020,533.80 and 21,718,393.20 is: 32,581,486.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,007,468.40 : 78,020,533.80 = 21,718,393.20 : x
  2. Step 2: Convert to fraction form
    52,007,468.40/78,020,533.80 = 21,718,393.20/x
  3. Step 3: Cross multiply
    52,007,468.40x = 78,020,533.80 × 21,718,393.20
  4. Step 4: Simplify right side
    52,007,468.40x = 1,694,480,630,742,290
  5. Step 5: Solve for x
    x = 1,694,480,630,742,290/52,007,468.40
  6. Step 6: Final answer
    x = 32,581,486.52

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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.