Home / 977,587,931.80-1,468,082,508.90-518,422,907.80

Finding the Fourth Proportional to 977,587,931.80, 1,468,082,508.90 and 518,422,907.80

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Solution

The fourth proportional to 977,587,931.80, 1,468,082,508.90 and 518,422,907.80 is: 778,536,209.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,587,931.80 : 1,468,082,508.90 = 518,422,907.80 : x
  2. Step 2: Convert to fraction form
    977,587,931.80/1,468,082,508.90 = 518,422,907.80/x
  3. Step 3: Cross multiply
    977,587,931.80x = 1,468,082,508.90 × 518,422,907.80
  4. Step 4: Simplify right side
    977,587,931.80x = 761,087,603,154,257,408
  5. Step 5: Solve for x
    x = 761,087,603,154,257,408/977,587,931.80
  6. Step 6: Final answer
    x = 778,536,209.78

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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.