Home / 678,871,819.40-1,018,307,729.10-334,498,051.40

Finding the Fourth Proportional to 678,871,819.40, 1,018,307,729.10 and 334,498,051.40

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Solution

The fourth proportional to 678,871,819.40, 1,018,307,729.10 and 334,498,051.40 is: 501,747,077.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,871,819.40 : 1,018,307,729.10 = 334,498,051.40 : x
  2. Step 2: Convert to fraction form
    678,871,819.40/1,018,307,729.10 = 334,498,051.40/x
  3. Step 3: Cross multiply
    678,871,819.40x = 1,018,307,729.10 × 334,498,051.40
  4. Step 4: Simplify right side
    678,871,819.40x = 340,621,951,109,509,056
  5. Step 5: Solve for x
    x = 340,621,951,109,509,056/678,871,819.40
  6. Step 6: Final answer
    x = 501,747,077.10

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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.