Home / 989,605,089.50-1,365,617,607.75-549,600,285.02

Finding the Fourth Proportional to 989,605,089.50, 1,365,617,607.75 and 549,600,285.02

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Solution

The fourth proportional to 989,605,089.50, 1,365,617,607.75 and 549,600,285.02 is: 758,427,613.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,605,089.50 : 1,365,617,607.75 = 549,600,285.02 : x
  2. Step 2: Convert to fraction form
    989,605,089.50/1,365,617,607.75 = 549,600,285.02/x
  3. Step 3: Cross multiply
    989,605,089.50x = 1,365,617,607.75 × 549,600,285.02
  4. Step 4: Simplify right side
    989,605,089.50x = 750,543,826,440,902,400
  5. Step 5: Solve for x
    x = 750,543,826,440,902,400/989,605,089.50
  6. Step 6: Final answer
    x = 758,427,613.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.