Home / 340,860,521.28-511,312,305.84-144,087,242.40

Finding the Fourth Proportional to 340,860,521.28, 511,312,305.84 and 144,087,242.40

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Solution

The fourth proportional to 340,860,521.28, 511,312,305.84 and 144,087,242.40 is: 216,139,962.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,860,521.28 : 511,312,305.84 = 144,087,242.40 : x
  2. Step 2: Convert to fraction form
    340,860,521.28/511,312,305.84 = 144,087,242.40/x
  3. Step 3: Cross multiply
    340,860,521.28x = 511,312,305.84 × 144,087,242.40
  4. Step 4: Simplify right side
    340,860,521.28x = 73,673,580,153,671,008
  5. Step 5: Solve for x
    x = 73,673,580,153,671,008/340,860,521.28
  6. Step 6: Final answer
    x = 216,139,962.11

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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.