Home / 989,774,876.03-1,365,903,318.19-543,779,457.56

Finding the Fourth Proportional to 989,774,876.03, 1,365,903,318.19 and 543,779,457.56

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Solution

The fourth proportional to 989,774,876.03, 1,365,903,318.19 and 543,779,457.56 is: 750,423,337.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,774,876.03 : 1,365,903,318.19 = 543,779,457.56 : x
  2. Step 2: Convert to fraction form
    989,774,876.03/1,365,903,318.19 = 543,779,457.56/x
  3. Step 3: Cross multiply
    989,774,876.03x = 1,365,903,318.19 × 543,779,457.56
  4. Step 4: Simplify right side
    989,774,876.03x = 742,750,165,437,932,672
  5. Step 5: Solve for x
    x = 742,750,165,437,932,672/989,774,876.03
  6. Step 6: Final answer
    x = 750,423,337.09

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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.