Home / 918,091,421.40-1,377,137,132.10-860,695,793.40

Finding the Fourth Proportional to 918,091,421.40, 1,377,137,132.10 and 860,695,793.40

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Solution

The fourth proportional to 918,091,421.40, 1,377,137,132.10 and 860,695,793.40 is: 1,291,043,690.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,091,421.40 : 1,377,137,132.10 = 860,695,793.40 : x
  2. Step 2: Convert to fraction form
    918,091,421.40/1,377,137,132.10 = 860,695,793.40/x
  3. Step 3: Cross multiply
    918,091,421.40x = 1,377,137,132.10 × 860,695,793.40
  4. Step 4: Simplify right side
    918,091,421.40x = 1,185,296,136,533,410,048
  5. Step 5: Solve for x
    x = 1,185,296,136,533,410,048/918,091,421.40
  6. Step 6: Final answer
    x = 1,291,043,690.10

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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.