Home / 770,743,898.40-1,155,779,924.40-310,529,114.40

Finding the Fourth Proportional to 770,743,898.40, 1,155,779,924.40 and 310,529,114.40

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Solution

The fourth proportional to 770,743,898.40, 1,155,779,924.40 and 310,529,114.40 is: 465,658,329.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,743,898.40 : 1,155,779,924.40 = 310,529,114.40 : x
  2. Step 2: Convert to fraction form
    770,743,898.40/1,155,779,924.40 = 310,529,114.40/x
  3. Step 3: Cross multiply
    770,743,898.40x = 1,155,779,924.40 × 310,529,114.40
  4. Step 4: Simplify right side
    770,743,898.40x = 358,903,316,365,230,976
  5. Step 5: Solve for x
    x = 358,903,316,365,230,976/770,743,898.40
  6. Step 6: Final answer
    x = 465,658,329.71

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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.