Home / 688,299,089.76-949,852,880.54-375,033,303.72

Finding the Fourth Proportional to 688,299,089.76, 949,852,880.54 and 375,033,303.72

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Solution

The fourth proportional to 688,299,089.76, 949,852,880.54 and 375,033,303.72 is: 517,546,033.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,299,089.76 : 949,852,880.54 = 375,033,303.72 : x
  2. Step 2: Convert to fraction form
    688,299,089.76/949,852,880.54 = 375,033,303.72/x
  3. Step 3: Cross multiply
    688,299,089.76x = 949,852,880.54 × 375,033,303.72
  4. Step 4: Simplify right side
    688,299,089.76x = 356,226,463,836,874,688
  5. Step 5: Solve for x
    x = 356,226,463,836,874,688/688,299,089.76
  6. Step 6: Final answer
    x = 517,546,033.60

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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.