Home / 770,743,609.40-1,155,779,490.90-310,528,825.40

Finding the Fourth Proportional to 770,743,609.40, 1,155,779,490.90 and 310,528,825.40

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Solution

The fourth proportional to 770,743,609.40, 1,155,779,490.90 and 310,528,825.40 is: 465,657,896.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,743,609.40 : 1,155,779,490.90 = 310,528,825.40 : x
  2. Step 2: Convert to fraction form
    770,743,609.40/1,155,779,490.90 = 310,528,825.40/x
  3. Step 3: Cross multiply
    770,743,609.40x = 1,155,779,490.90 × 310,528,825.40
  4. Step 4: Simplify right side
    770,743,609.40x = 358,902,847,730,587,008
  5. Step 5: Solve for x
    x = 358,902,847,730,587,008/770,743,609.40
  6. Step 6: Final answer
    x = 465,657,896.29

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1.5x scale

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.