Home / 30,341,490-45,512,278.80-12,390,594

Finding the Fourth Proportional to 30,341,490, 45,512,278.80 and 12,390,594

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Solution

The fourth proportional to 30,341,490, 45,512,278.80 and 12,390,594 is: 18,585,908.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,341,490 : 45,512,278.80 = 12,390,594 : x
  2. Step 2: Convert to fraction form
    30,341,490/45,512,278.80 = 12,390,594/x
  3. Step 3: Cross multiply
    30,341,490x = 45,512,278.80 × 12,390,594
  4. Step 4: Simplify right side
    30,341,490x = 563,924,168,625,607.12
  5. Step 5: Solve for x
    x = 563,924,168,625,607.12/30,341,490
  6. Step 6: Final answer
    x = 18,585,908.89

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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.