Home / 578,754,830.40-869,140,015.20-306,657,038.40

Finding the Fourth Proportional to 578,754,830.40, 869,140,015.20 and 306,657,038.40

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Solution

The fourth proportional to 578,754,830.40, 869,140,015.20 and 306,657,038.40 is: 460,519,530.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,754,830.40 : 869,140,015.20 = 306,657,038.40 : x
  2. Step 2: Convert to fraction form
    578,754,830.40/869,140,015.20 = 306,657,038.40/x
  3. Step 3: Cross multiply
    578,754,830.40x = 869,140,015.20 × 306,657,038.40
  4. Step 4: Simplify right side
    578,754,830.40x = 266,527,903,016,162,976
  5. Step 5: Solve for x
    x = 266,527,903,016,162,976/578,754,830.40
  6. Step 6: Final answer
    x = 460,519,530.92

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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.