Home / 19,966,943.70-29,897,271.45-12,739,346.10

Finding the Fourth Proportional to 19,966,943.70, 29,897,271.45 and 12,739,346.10

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Solution

The fourth proportional to 19,966,943.70, 29,897,271.45 and 12,739,346.10 is: 19,075,112.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,966,943.70 : 29,897,271.45 = 12,739,346.10 : x
  2. Step 2: Convert to fraction form
    19,966,943.70/29,897,271.45 = 12,739,346.10/x
  3. Step 3: Cross multiply
    19,966,943.70x = 29,897,271.45 × 12,739,346.10
  4. Step 4: Simplify right side
    19,966,943.70x = 380,871,688,447,198.81
  5. Step 5: Solve for x
    x = 380,871,688,447,198.81/19,966,943.70
  6. Step 6: Final answer
    x = 19,075,112.05

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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.