Home / 891,648,011.60-1,337,472,017.40-542,455,845.20

Finding the Fourth Proportional to 891,648,011.60, 1,337,472,017.40 and 542,455,845.20

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Solution

The fourth proportional to 891,648,011.60, 1,337,472,017.40 and 542,455,845.20 is: 813,683,767.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,648,011.60 : 1,337,472,017.40 = 542,455,845.20 : x
  2. Step 2: Convert to fraction form
    891,648,011.60/1,337,472,017.40 = 542,455,845.20/x
  3. Step 3: Cross multiply
    891,648,011.60x = 1,337,472,017.40 × 542,455,845.20
  4. Step 4: Simplify right side
    891,648,011.60x = 725,519,513,630,066,176
  5. Step 5: Solve for x
    x = 725,519,513,630,066,176/891,648,011.60
  6. Step 6: Final answer
    x = 813,683,767.80

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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.