Finding the Fourth Proportional to 128,860,345.84, 177,829,417.59 and 70,125,486.52
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Solution
The fourth proportional to 128,860,345.84, 177,829,417.59 and 70,125,486.52 is: 96,774,336.16
Step by Step Solution
- Step 1: Write the proportion equation
128,860,345.84 : 177,829,417.59 = 70,125,486.52 : x - Step 2: Convert to fraction form
128,860,345.84/177,829,417.59 = 70,125,486.52/x - Step 3: Cross multiply
128,860,345.84x = 177,829,417.59 × 70,125,486.52 - Step 4: Simplify right side
128,860,345.84x = 12,470,374,426,066,996 - Step 5: Solve for x
x = 12,470,374,426,066,996/128,860,345.84 - Step 6: Final answer
x = 96,774,336.16
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.