Home / 1,119,312,556.40-1,679,184,035.40-429,165,988.40

Finding the Fourth Proportional to 1,119,312,556.40, 1,679,184,035.40 and 429,165,988.40

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Solution

The fourth proportional to 1,119,312,556.40, 1,679,184,035.40 and 429,165,988.40 is: 643,831,494.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,312,556.40 : 1,679,184,035.40 = 429,165,988.40 : x
  2. Step 2: Convert to fraction form
    1,119,312,556.40/1,679,184,035.40 = 429,165,988.40/x
  3. Step 3: Cross multiply
    1,119,312,556.40x = 1,679,184,035.40 × 429,165,988.40
  4. Step 4: Simplify right side
    1,119,312,556.40x = 720,648,676,257,941,632
  5. Step 5: Solve for x
    x = 720,648,676,257,941,632/1,119,312,556.40
  6. Step 6: Final answer
    x = 643,831,494.73

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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.