Home / 440,213,871.60-660,320,807.40-433,411,426.80

Finding the Fourth Proportional to 440,213,871.60, 660,320,807.40 and 433,411,426.80

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Solution

The fourth proportional to 440,213,871.60, 660,320,807.40 and 433,411,426.80 is: 650,117,140.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,213,871.60 : 660,320,807.40 = 433,411,426.80 : x
  2. Step 2: Convert to fraction form
    440,213,871.60/660,320,807.40 = 433,411,426.80/x
  3. Step 3: Cross multiply
    440,213,871.60x = 660,320,807.40 × 433,411,426.80
  4. Step 4: Simplify right side
    440,213,871.60x = 286,190,583,280,961,984
  5. Step 5: Solve for x
    x = 286,190,583,280,961,984/440,213,871.60
  6. Step 6: Final answer
    x = 650,117,140.20

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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.