Finding the Fourth Proportional to 74,918,518.14, 103,381,802.96 and 45,545,774.06
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Solution
The fourth proportional to 74,918,518.14, 103,381,802.96 and 45,545,774.06 is: 62,849,671.30
Step by Step Solution
- Step 1: Write the proportion equation
74,918,518.14 : 103,381,802.96 = 45,545,774.06 : x - Step 2: Convert to fraction form
74,918,518.14/103,381,802.96 = 45,545,774.06/x - Step 3: Cross multiply
74,918,518.14x = 103,381,802.96 × 45,545,774.06 - Step 4: Simplify right side
74,918,518.14x = 4,708,604,239,531,599 - Step 5: Solve for x
x = 4,708,604,239,531,599/74,918,518.14 - Step 6: Final answer
x = 62,849,671.30
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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.