Home / 645,417,338.95-968,323,587.80-330,506,336.59

Finding the Fourth Proportional to 645,417,338.95, 968,323,587.80 and 330,506,336.59

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Solution

The fourth proportional to 645,417,338.95, 968,323,587.80 and 330,506,336.59 is: 495,860,681.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,417,338.95 : 968,323,587.80 = 330,506,336.59 : x
  2. Step 2: Convert to fraction form
    645,417,338.95/968,323,587.80 = 330,506,336.59/x
  3. Step 3: Cross multiply
    645,417,338.95x = 968,323,587.80 × 330,506,336.59
  4. Step 4: Simplify right side
    645,417,338.95x = 320,037,081,638,882,944
  5. Step 5: Solve for x
    x = 320,037,081,638,882,944/645,417,338.95
  6. Step 6: Final answer
    x = 495,860,681.64

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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.