Home / 456,093,407.40-684,140,111.10-398,697,779.40

Finding the Fourth Proportional to 456,093,407.40, 684,140,111.10 and 398,697,779.40

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Solution

The fourth proportional to 456,093,407.40, 684,140,111.10 and 398,697,779.40 is: 598,046,669.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,093,407.40 : 684,140,111.10 = 398,697,779.40 : x
  2. Step 2: Convert to fraction form
    456,093,407.40/684,140,111.10 = 398,697,779.40/x
  3. Step 3: Cross multiply
    456,093,407.40x = 684,140,111.10 × 398,697,779.40
  4. Step 4: Simplify right side
    456,093,407.40x = 272,765,143,094,039,296
  5. Step 5: Solve for x
    x = 272,765,143,094,039,296/456,093,407.40
  6. Step 6: Final answer
    x = 598,046,669.10

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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.