Home / 928,054,927.36-1,280,748,665.28-510,399,539.20

Finding the Fourth Proportional to 928,054,927.36, 1,280,748,665.28 and 510,399,539.20

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Solution

The fourth proportional to 928,054,927.36, 1,280,748,665.28 and 510,399,539.20 is: 704,369,439.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,054,927.36 : 1,280,748,665.28 = 510,399,539.20 : x
  2. Step 2: Convert to fraction form
    928,054,927.36/1,280,748,665.28 = 510,399,539.20/x
  3. Step 3: Cross multiply
    928,054,927.36x = 1,280,748,665.28 × 510,399,539.20
  4. Step 4: Simplify right side
    928,054,927.36x = 653,693,528,589,927,040
  5. Step 5: Solve for x
    x = 653,693,528,589,927,040/928,054,927.36
  6. Step 6: Final answer
    x = 704,369,439.05

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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.