Home / 672,443,702.28-927,995,384.48-390,164,827.50

Finding the Fourth Proportional to 672,443,702.28, 927,995,384.48 and 390,164,827.50

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Solution

The fourth proportional to 672,443,702.28, 927,995,384.48 and 390,164,827.50 is: 538,440,850.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,443,702.28 : 927,995,384.48 = 390,164,827.50 : x
  2. Step 2: Convert to fraction form
    672,443,702.28/927,995,384.48 = 390,164,827.50/x
  3. Step 3: Cross multiply
    672,443,702.28x = 927,995,384.48 × 390,164,827.50
  4. Step 4: Simplify right side
    672,443,702.28x = 362,071,159,104,484,544
  5. Step 5: Solve for x
    x = 362,071,159,104,484,544/672,443,702.28
  6. Step 6: Final answer
    x = 538,440,850.70

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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.