Home / 42,776,021.40-64,164,032.10-12,486,946.20

Finding the Fourth Proportional to 42,776,021.40, 64,164,032.10 and 12,486,946.20

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Solution

The fourth proportional to 42,776,021.40, 64,164,032.10 and 12,486,946.20 is: 18,730,419.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,776,021.40 : 64,164,032.10 = 12,486,946.20 : x
  2. Step 2: Convert to fraction form
    42,776,021.40/64,164,032.10 = 12,486,946.20/x
  3. Step 3: Cross multiply
    42,776,021.40x = 64,164,032.10 × 12,486,946.20
  4. Step 4: Simplify right side
    42,776,021.40x = 801,212,816,807,773
  5. Step 5: Solve for x
    x = 801,212,816,807,773/42,776,021.40
  6. Step 6: Final answer
    x = 18,730,419.30

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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.