Home / 570,158,644.35-786,818,929.28-309,398,260.35

Finding the Fourth Proportional to 570,158,644.35, 786,818,929.28 and 309,398,260.35

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Solution

The fourth proportional to 570,158,644.35, 786,818,929.28 and 309,398,260.35 is: 426,969,599.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,158,644.35 : 786,818,929.28 = 309,398,260.35 : x
  2. Step 2: Convert to fraction form
    570,158,644.35/786,818,929.28 = 309,398,260.35/x
  3. Step 3: Cross multiply
    570,158,644.35x = 786,818,929.28 × 309,398,260.35
  4. Step 4: Simplify right side
    570,158,644.35x = 243,440,407,928,134,688
  5. Step 5: Solve for x
    x = 243,440,407,928,134,688/570,158,644.35
  6. Step 6: Final answer
    x = 426,969,599.32

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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.