Home / 830,912,542.65-1,146,559,410.45-478,603,113.93

Finding the Fourth Proportional to 830,912,542.65, 1,146,559,410.45 and 478,603,113.93

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Solution

The fourth proportional to 830,912,542.65, 1,146,559,410.45 and 478,603,113.93 is: 660,414,756.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,912,542.65 : 1,146,559,410.45 = 478,603,113.93 : x
  2. Step 2: Convert to fraction form
    830,912,542.65/1,146,559,410.45 = 478,603,113.93/x
  3. Step 3: Cross multiply
    830,912,542.65x = 1,146,559,410.45 × 478,603,113.93
  4. Step 4: Simplify right side
    830,912,542.65x = 548,746,904,147,115,008
  5. Step 5: Solve for x
    x = 548,746,904,147,115,008/830,912,542.65
  6. Step 6: Final answer
    x = 660,414,756.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.