Home / 418,918,702.02-578,107,801.95-242,808,846.69

Finding the Fourth Proportional to 418,918,702.02, 578,107,801.95 and 242,808,846.69

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Solution

The fourth proportional to 418,918,702.02, 578,107,801.95 and 242,808,846.69 is: 335,076,204.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,918,702.02 : 578,107,801.95 = 242,808,846.69 : x
  2. Step 2: Convert to fraction form
    418,918,702.02/578,107,801.95 = 242,808,846.69/x
  3. Step 3: Cross multiply
    418,918,702.02x = 578,107,801.95 × 242,808,846.69
  4. Step 4: Simplify right side
    418,918,702.02x = 140,369,688,653,970,448
  5. Step 5: Solve for x
    x = 140,369,688,653,970,448/418,918,702.02
  6. Step 6: Final answer
    x = 335,076,204.47

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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.