Home / 430,637,564.40-645,186,522.60-262,069,436.40

Finding the Fourth Proportional to 430,637,564.40, 645,186,522.60 and 262,069,436.40

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Solution

The fourth proportional to 430,637,564.40, 645,186,522.60 and 262,069,436.40 is: 392,635,669.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,637,564.40 : 645,186,522.60 = 262,069,436.40 : x
  2. Step 2: Convert to fraction form
    430,637,564.40/645,186,522.60 = 262,069,436.40/x
  3. Step 3: Cross multiply
    430,637,564.40x = 645,186,522.60 × 262,069,436.40
  4. Step 4: Simplify right side
    430,637,564.40x = 169,083,668,350,657,888
  5. Step 5: Solve for x
    x = 169,083,668,350,657,888/430,637,564.40
  6. Step 6: Final answer
    x = 392,635,669.36

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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.