Home / 1,209,750,650.21-1,669,391,130.52-666,574,737.42

Finding the Fourth Proportional to 1,209,750,650.21, 1,669,391,130.52 and 666,574,737.42

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Solution

The fourth proportional to 1,209,750,650.21, 1,669,391,130.52 and 666,574,737.42 is: 919,837,451.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,750,650.21 : 1,669,391,130.52 = 666,574,737.42 : x
  2. Step 2: Convert to fraction form
    1,209,750,650.21/1,669,391,130.52 = 666,574,737.42/x
  3. Step 3: Cross multiply
    1,209,750,650.21x = 1,669,391,130.52 × 666,574,737.42
  4. Step 4: Simplify right side
    1,209,750,650.21x = 1,112,773,954,478,131,968
  5. Step 5: Solve for x
    x = 1,112,773,954,478,131,968/1,209,750,650.21
  6. Step 6: Final answer
    x = 919,837,451.03

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Double scale
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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.