Home / 563,092,420.84-845,124,899.58-390,690,303.16

Finding the Fourth Proportional to 563,092,420.84, 845,124,899.58 and 390,690,303.16

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Solution

The fourth proportional to 563,092,420.84, 845,124,899.58 and 390,690,303.16 is: 586,372,842.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,092,420.84 : 845,124,899.58 = 390,690,303.16 : x
  2. Step 2: Convert to fraction form
    563,092,420.84/845,124,899.58 = 390,690,303.16/x
  3. Step 3: Cross multiply
    563,092,420.84x = 845,124,899.58 × 390,690,303.16
  4. Step 4: Simplify right side
    563,092,420.84x = 330,182,103,224,974,784
  5. Step 5: Solve for x
    x = 330,182,103,224,974,784/563,092,420.84
  6. Step 6: Final answer
    x = 586,372,842.19

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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.