Home / 430,637,490.40-645,186,411.60-262,069,362.40

Finding the Fourth Proportional to 430,637,490.40, 645,186,411.60 and 262,069,362.40

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Solution

The fourth proportional to 430,637,490.40, 645,186,411.60 and 262,069,362.40 is: 392,635,558.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,637,490.40 : 645,186,411.60 = 262,069,362.40 : x
  2. Step 2: Convert to fraction form
    430,637,490.40/645,186,411.60 = 262,069,362.40/x
  3. Step 3: Cross multiply
    430,637,490.40x = 645,186,411.60 × 262,069,362.40
  4. Step 4: Simplify right side
    430,637,490.40x = 169,083,591,517,155,968
  5. Step 5: Solve for x
    x = 169,083,591,517,155,968/430,637,490.40
  6. Step 6: Final answer
    x = 392,635,558.41

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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.