Home / 909,506,079.79-1,364,868,518.06-319,298,072.60

Finding the Fourth Proportional to 909,506,079.79, 1,364,868,518.06 and 319,298,072.60

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Solution

The fourth proportional to 909,506,079.79, 1,364,868,518.06 and 319,298,072.60 is: 479,161,048.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,506,079.79 : 1,364,868,518.06 = 319,298,072.60 : x
  2. Step 2: Convert to fraction form
    909,506,079.79/1,364,868,518.06 = 319,298,072.60/x
  3. Step 3: Cross multiply
    909,506,079.79x = 1,364,868,518.06 × 319,298,072.60
  4. Step 4: Simplify right side
    909,506,079.79x = 435,799,887,164,714,176
  5. Step 5: Solve for x
    x = 435,799,887,164,714,176/909,506,079.79
  6. Step 6: Final answer
    x = 479,161,048.89

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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.