Home / 685,586,030.08-946,398,258.56-462,869,428

Finding the Fourth Proportional to 685,586,030.08, 946,398,258.56 and 462,869,428

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Solution

The fourth proportional to 685,586,030.08, 946,398,258.56 and 462,869,428 is: 638,955,289.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,586,030.08 : 946,398,258.56 = 462,869,428 : x
  2. Step 2: Convert to fraction form
    685,586,030.08/946,398,258.56 = 462,869,428/x
  3. Step 3: Cross multiply
    685,586,030.08x = 946,398,258.56 × 462,869,428
  4. Step 4: Simplify right side
    685,586,030.08x = 438,058,820,599,863,296
  5. Step 5: Solve for x
    x = 438,058,820,599,863,296/685,586,030.08
  6. Step 6: Final answer
    x = 638,955,289.90

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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.