Home / 1,412,237,066.40-2,118,355,599.60-442,887,127.20

Finding the Fourth Proportional to 1,412,237,066.40, 2,118,355,599.60 and 442,887,127.20

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Solution

The fourth proportional to 1,412,237,066.40, 2,118,355,599.60 and 442,887,127.20 is: 664,330,690.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412,237,066.40 : 2,118,355,599.60 = 442,887,127.20 : x
  2. Step 2: Convert to fraction form
    1,412,237,066.40/2,118,355,599.60 = 442,887,127.20/x
  3. Step 3: Cross multiply
    1,412,237,066.40x = 2,118,355,599.60 × 442,887,127.20
  4. Step 4: Simplify right side
    1,412,237,066.40x = 938,192,425,894,877,440
  5. Step 5: Solve for x
    x = 938,192,425,894,877,440/1,412,237,066.40
  6. Step 6: Final answer
    x = 664,330,690.80

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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.