Home / 28,026,017.40-42,039,026.10-7,831,259.40

Finding the Fourth Proportional to 28,026,017.40, 42,039,026.10 and 7,831,259.40

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Solution

The fourth proportional to 28,026,017.40, 42,039,026.10 and 7,831,259.40 is: 11,746,889.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,026,017.40 : 42,039,026.10 = 7,831,259.40 : x
  2. Step 2: Convert to fraction form
    28,026,017.40/42,039,026.10 = 7,831,259.40/x
  3. Step 3: Cross multiply
    28,026,017.40x = 42,039,026.10 × 7,831,259.40
  4. Step 4: Simplify right side
    28,026,017.40x = 329,218,518,312,470.38
  5. Step 5: Solve for x
    x = 329,218,518,312,470.38/28,026,017.40
  6. Step 6: Final answer
    x = 11,746,889.10

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Similar ratio
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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.