Finding the Fourth Proportional to 998,389,928.18, 1,377,767,885.53 and 552,356,483.65
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Solution
The fourth proportional to 998,389,928.18, 1,377,767,885.53 and 552,356,483.65 is: 762,246,295.82
Step by Step Solution
- Step 1: Write the proportion equation
998,389,928.18 : 1,377,767,885.53 = 552,356,483.65 : x - Step 2: Convert to fraction form
998,389,928.18/1,377,767,885.53 = 552,356,483.65/x - Step 3: Cross multiply
998,389,928.18x = 1,377,767,885.53 × 552,356,483.65 - Step 4: Simplify right side
998,389,928.18x = 761,019,024,532,421,248 - Step 5: Solve for x
x = 761,019,024,532,421,248/998,389,928.18 - Step 6: Final answer
x = 762,246,295.82
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.