Home / 868,298,869.44-1,302,649,780.80-286,012,238.40

Finding the Fourth Proportional to 868,298,869.44, 1,302,649,780.80 and 286,012,238.40

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Solution

The fourth proportional to 868,298,869.44, 1,302,649,780.80 and 286,012,238.40 is: 429,084,722.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,298,869.44 : 1,302,649,780.80 = 286,012,238.40 : x
  2. Step 2: Convert to fraction form
    868,298,869.44/1,302,649,780.80 = 286,012,238.40/x
  3. Step 3: Cross multiply
    868,298,869.44x = 1,302,649,780.80 × 286,012,238.40
  4. Step 4: Simplify right side
    868,298,869.44x = 372,573,779,657,877,312
  5. Step 5: Solve for x
    x = 372,573,779,657,877,312/868,298,869.44
  6. Step 6: Final answer
    x = 429,084,722.75

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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.